Home / 80,857,788.10-121,286,682.15-78,732,024.10

Finding the Fourth Proportional to 80,857,788.10, 121,286,682.15 and 78,732,024.10

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Solution

The fourth proportional to 80,857,788.10, 121,286,682.15 and 78,732,024.10 is: 118,098,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,857,788.10 : 121,286,682.15 = 78,732,024.10 : x
  2. Step 2: Convert to fraction form
    80,857,788.10/121,286,682.15 = 78,732,024.10/x
  3. Step 3: Cross multiply
    80,857,788.10x = 121,286,682.15 × 78,732,024.10
  4. Step 4: Simplify right side
    80,857,788.10x = 9,549,145,982,042,840
  5. Step 5: Solve for x
    x = 9,549,145,982,042,840/80,857,788.10
  6. Step 6: Final answer
    x = 118,098,036.15

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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.