Home / 89,195,429.60-133,793,144.40-66,520,613.60

Finding the Fourth Proportional to 89,195,429.60, 133,793,144.40 and 66,520,613.60

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Solution

The fourth proportional to 89,195,429.60, 133,793,144.40 and 66,520,613.60 is: 99,780,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,195,429.60 : 133,793,144.40 = 66,520,613.60 : x
  2. Step 2: Convert to fraction form
    89,195,429.60/133,793,144.40 = 66,520,613.60/x
  3. Step 3: Cross multiply
    89,195,429.60x = 133,793,144.40 × 66,520,613.60
  4. Step 4: Simplify right side
    89,195,429.60x = 8,900,002,060,961,404
  5. Step 5: Solve for x
    x = 8,900,002,060,961,404/89,195,429.60
  6. Step 6: Final answer
    x = 99,780,920.40

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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.