Home / 79,214,749.20-118,822,123.80-76,344,967.80

Finding the Fourth Proportional to 79,214,749.20, 118,822,123.80 and 76,344,967.80

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Solution

The fourth proportional to 79,214,749.20, 118,822,123.80 and 76,344,967.80 is: 114,517,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214,749.20 : 118,822,123.80 = 76,344,967.80 : x
  2. Step 2: Convert to fraction form
    79,214,749.20/118,822,123.80 = 76,344,967.80/x
  3. Step 3: Cross multiply
    79,214,749.20x = 118,822,123.80 × 76,344,967.80
  4. Step 4: Simplify right side
    79,214,749.20x = 9,071,471,215,438,614
  5. Step 5: Solve for x
    x = 9,071,471,215,438,614/79,214,749.20
  6. Step 6: Final answer
    x = 114,517,451.70

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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.