Home / 84,156,543.60-126,234,815.40-43,761,778.80

Finding the Fourth Proportional to 84,156,543.60, 126,234,815.40 and 43,761,778.80

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Solution

The fourth proportional to 84,156,543.60, 126,234,815.40 and 43,761,778.80 is: 65,642,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,156,543.60 : 126,234,815.40 = 43,761,778.80 : x
  2. Step 2: Convert to fraction form
    84,156,543.60/126,234,815.40 = 43,761,778.80/x
  3. Step 3: Cross multiply
    84,156,543.60x = 126,234,815.40 × 43,761,778.80
  4. Step 4: Simplify right side
    84,156,543.60x = 5,524,260,068,393,633
  5. Step 5: Solve for x
    x = 5,524,260,068,393,633/84,156,543.60
  6. Step 6: Final answer
    x = 65,642,668.20

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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.