Home / 20,760,006.80-31,140,010.20-15,053,459.60

Finding the Fourth Proportional to 20,760,006.80, 31,140,010.20 and 15,053,459.60

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Solution

The fourth proportional to 20,760,006.80, 31,140,010.20 and 15,053,459.60 is: 22,580,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,006.80 : 31,140,010.20 = 15,053,459.60 : x
  2. Step 2: Convert to fraction form
    20,760,006.80/31,140,010.20 = 15,053,459.60/x
  3. Step 3: Cross multiply
    20,760,006.80x = 31,140,010.20 × 15,053,459.60
  4. Step 4: Simplify right side
    20,760,006.80x = 468,764,885,489,287.88
  5. Step 5: Solve for x
    x = 468,764,885,489,287.88/20,760,006.80
  6. Step 6: Final answer
    x = 22,580,189.40

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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.