Home / 28,551,239.92-39,400,761.08-15,498,507.70

Finding the Fourth Proportional to 28,551,239.92, 39,400,761.08 and 15,498,507.70

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Solution

The fourth proportional to 28,551,239.92, 39,400,761.08 and 15,498,507.70 is: 21,387,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,239.92 : 39,400,761.08 = 15,498,507.70 : x
  2. Step 2: Convert to fraction form
    28,551,239.92/39,400,761.08 = 15,498,507.70/x
  3. Step 3: Cross multiply
    28,551,239.92x = 39,400,761.08 × 15,498,507.70
  4. Step 4: Simplify right side
    28,551,239.92x = 610,652,998,984,240.25
  5. Step 5: Solve for x
    x = 610,652,998,984,240.25/28,551,239.92
  6. Step 6: Final answer
    x = 21,387,967.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.