Home / 19,720,331.10-29,580,496.65-13,225,815.90

Finding the Fourth Proportional to 19,720,331.10, 29,580,496.65 and 13,225,815.90

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Solution

The fourth proportional to 19,720,331.10, 29,580,496.65 and 13,225,815.90 is: 19,838,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,331.10 : 29,580,496.65 = 13,225,815.90 : x
  2. Step 2: Convert to fraction form
    19,720,331.10/29,580,496.65 = 13,225,815.90/x
  3. Step 3: Cross multiply
    19,720,331.10x = 29,580,496.65 × 13,225,815.90
  4. Step 4: Simplify right side
    19,720,331.10x = 391,226,202,923,466.75
  5. Step 5: Solve for x
    x = 391,226,202,923,466.75/19,720,331.10
  6. Step 6: Final answer
    x = 19,838,723.85

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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.