Home / 83,219,793.20-124,829,689.80-73,142,097.20

Finding the Fourth Proportional to 83,219,793.20, 124,829,689.80 and 73,142,097.20

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Solution

The fourth proportional to 83,219,793.20, 124,829,689.80 and 73,142,097.20 is: 109,713,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,219,793.20 : 124,829,689.80 = 73,142,097.20 : x
  2. Step 2: Convert to fraction form
    83,219,793.20/124,829,689.80 = 73,142,097.20/x
  3. Step 3: Cross multiply
    83,219,793.20x = 124,829,689.80 × 73,142,097.20
  4. Step 4: Simplify right side
    83,219,793.20x = 9,130,305,304,797,448
  5. Step 5: Solve for x
    x = 9,130,305,304,797,448/83,219,793.20
  6. Step 6: Final answer
    x = 109,713,145.80

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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.