Home / 521,520,778,757.80-782,281,168,136.70-149,290,999,301.80

Finding the Fourth Proportional to 521,520,778,757.80, 782,281,168,136.70 and 149,290,999,301.80

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Solution

The fourth proportional to 521,520,778,757.80, 782,281,168,136.70 and 149,290,999,301.80 is: 223,936,498,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,778,757.80 : 782,281,168,136.70 = 149,290,999,301.80 : x
  2. Step 2: Convert to fraction form
    521,520,778,757.80/782,281,168,136.70 = 149,290,999,301.80/x
  3. Step 3: Cross multiply
    521,520,778,757.80x = 782,281,168,136.70 × 149,290,999,301.80
  4. Step 4: Simplify right side
    521,520,778,757.80x = 116,787,537,326,107,348,959,232
  5. Step 5: Solve for x
    x = 116,787,537,326,107,348,959,232/521,520,778,757.80
  6. Step 6: Final answer
    x = 223,936,498,952.70

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Double scale
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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.