Home / 20,694,564.52-31,055,132.86-13,878,833.70

Finding the Fourth Proportional to 20,694,564.52, 31,055,132.86 and 13,878,833.70

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Solution

The fourth proportional to 20,694,564.52, 31,055,132.86 and 13,878,833.70 is: 20,827,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694,564.52 : 31,055,132.86 = 13,878,833.70 : x
  2. Step 2: Convert to fraction form
    20,694,564.52/31,055,132.86 = 13,878,833.70/x
  3. Step 3: Cross multiply
    20,694,564.52x = 31,055,132.86 × 13,878,833.70
  4. Step 4: Simplify right side
    20,694,564.52x = 431,009,024,495,345.38
  5. Step 5: Solve for x
    x = 431,009,024,495,345.38/20,694,564.52
  6. Step 6: Final answer
    x = 20,827,160.87

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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.