Home / 28,040,807.40-42,061,211.10-15,947,572.20

Finding the Fourth Proportional to 28,040,807.40, 42,061,211.10 and 15,947,572.20

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Solution

The fourth proportional to 28,040,807.40, 42,061,211.10 and 15,947,572.20 is: 23,921,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,807.40 : 42,061,211.10 = 15,947,572.20 : x
  2. Step 2: Convert to fraction form
    28,040,807.40/42,061,211.10 = 15,947,572.20/x
  3. Step 3: Cross multiply
    28,040,807.40x = 42,061,211.10 × 15,947,572.20
  4. Step 4: Simplify right side
    28,040,807.40x = 670,774,200,836,691.38
  5. Step 5: Solve for x
    x = 670,774,200,836,691.38/28,040,807.40
  6. Step 6: Final answer
    x = 23,921,358.30

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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.