Home / 28,699,966.15-39,605,925.36-15,647,221.60

Finding the Fourth Proportional to 28,699,966.15, 39,605,925.36 and 15,647,221.60

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Solution

The fourth proportional to 28,699,966.15, 39,605,925.36 and 15,647,221.60 is: 21,593,150.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699,966.15 : 39,605,925.36 = 15,647,221.60 : x
  2. Step 2: Convert to fraction form
    28,699,966.15/39,605,925.36 = 15,647,221.60/x
  3. Step 3: Cross multiply
    28,699,966.15x = 39,605,925.36 × 15,647,221.60
  4. Step 4: Simplify right side
    28,699,966.15x = 619,722,690,780,979.75
  5. Step 5: Solve for x
    x = 619,722,690,780,979.75/28,699,966.15
  6. Step 6: Final answer
    x = 21,593,150.58

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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.