Home / 19,431,331.20-29,146,996.80-9,331,516.80

Finding the Fourth Proportional to 19,431,331.20, 29,146,996.80 and 9,331,516.80

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Solution

The fourth proportional to 19,431,331.20, 29,146,996.80 and 9,331,516.80 is: 13,997,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431,331.20 : 29,146,996.80 = 9,331,516.80 : x
  2. Step 2: Convert to fraction form
    19,431,331.20/29,146,996.80 = 9,331,516.80/x
  3. Step 3: Cross multiply
    19,431,331.20x = 29,146,996.80 × 9,331,516.80
  4. Step 4: Simplify right side
    19,431,331.20x = 271,985,690,308,746.28
  5. Step 5: Solve for x
    x = 271,985,690,308,746.28/19,431,331.20
  6. Step 6: Final answer
    x = 13,997,275.20

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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.