Home / 28,420,190.52-39,220,084.08-15,690,296.04

Finding the Fourth Proportional to 28,420,190.52, 39,220,084.08 and 15,690,296.04

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Solution

The fourth proportional to 28,420,190.52, 39,220,084.08 and 15,690,296.04 is: 21,652,730.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,190.52 : 39,220,084.08 = 15,690,296.04 : x
  2. Step 2: Convert to fraction form
    28,420,190.52/39,220,084.08 = 15,690,296.04/x
  3. Step 3: Cross multiply
    28,420,190.52x = 39,220,084.08 × 15,690,296.04
  4. Step 4: Simplify right side
    28,420,190.52x = 615,374,729,928,891
  5. Step 5: Solve for x
    x = 615,374,729,928,891/28,420,190.52
  6. Step 6: Final answer
    x = 21,652,730.64

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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.