Home / 66,472,604.20-99,708,906.30-43,779,125.80

Finding the Fourth Proportional to 66,472,604.20, 99,708,906.30 and 43,779,125.80

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Solution

The fourth proportional to 66,472,604.20, 99,708,906.30 and 43,779,125.80 is: 65,668,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,604.20 : 99,708,906.30 = 43,779,125.80 : x
  2. Step 2: Convert to fraction form
    66,472,604.20/99,708,906.30 = 43,779,125.80/x
  3. Step 3: Cross multiply
    66,472,604.20x = 99,708,906.30 × 43,779,125.80
  4. Step 4: Simplify right side
    66,472,604.20x = 4,365,168,752,288,112
  5. Step 5: Solve for x
    x = 4,365,168,752,288,112/66,472,604.20
  6. Step 6: Final answer
    x = 65,668,688.70

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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.