Home / 86,274,237,881.60-129,411,356,822.40-42,085,556,460.80

Finding the Fourth Proportional to 86,274,237,881.60, 129,411,356,822.40 and 42,085,556,460.80

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Solution

The fourth proportional to 86,274,237,881.60, 129,411,356,822.40 and 42,085,556,460.80 is: 63,128,334,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,274,237,881.60 : 129,411,356,822.40 = 42,085,556,460.80 : x
  2. Step 2: Convert to fraction form
    86,274,237,881.60/129,411,356,822.40 = 42,085,556,460.80/x
  3. Step 3: Cross multiply
    86,274,237,881.60x = 129,411,356,822.40 × 42,085,556,460.80
  4. Step 4: Simplify right side
    86,274,237,881.60x = 5,446,348,964,217,850,167,296
  5. Step 5: Solve for x
    x = 5,446,348,964,217,850,167,296/86,274,237,881.60
  6. Step 6: Final answer
    x = 63,128,334,691.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.