Home / 20,389,962.15-28,138,377.78-11,097,591.71

Finding the Fourth Proportional to 20,389,962.15, 28,138,377.78 and 11,097,591.71

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Solution

The fourth proportional to 20,389,962.15, 28,138,377.78 and 11,097,591.71 is: 15,314,801.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389,962.15 : 28,138,377.78 = 11,097,591.71 : x
  2. Step 2: Convert to fraction form
    20,389,962.15/28,138,377.78 = 11,097,591.71/x
  3. Step 3: Cross multiply
    20,389,962.15x = 28,138,377.78 × 11,097,591.71
  4. Step 4: Simplify right side
    20,389,962.15x = 312,268,228,060,965.12
  5. Step 5: Solve for x
    x = 312,268,228,060,965.12/20,389,962.15
  6. Step 6: Final answer
    x = 15,314,801.75

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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.