Home / 127,766,816.70-191,650,225.05-91,487,111.10

Finding the Fourth Proportional to 127,766,816.70, 191,650,225.05 and 91,487,111.10

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Solution

The fourth proportional to 127,766,816.70, 191,650,225.05 and 91,487,111.10 is: 137,230,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766,816.70 : 191,650,225.05 = 91,487,111.10 : x
  2. Step 2: Convert to fraction form
    127,766,816.70/191,650,225.05 = 91,487,111.10/x
  3. Step 3: Cross multiply
    127,766,816.70x = 191,650,225.05 × 91,487,111.10
  4. Step 4: Simplify right side
    127,766,816.70x = 17,533,525,431,489,354
  5. Step 5: Solve for x
    x = 17,533,525,431,489,354/127,766,816.70
  6. Step 6: Final answer
    x = 137,230,666.65

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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.