Home / 129,123,209.60-193,736,719.20-52,452,238.40

Finding the Fourth Proportional to 129,123,209.60, 193,736,719.20 and 52,452,238.40

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Solution

The fourth proportional to 129,123,209.60, 193,736,719.20 and 52,452,238.40 is: 78,699,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,123,209.60 : 193,736,719.20 = 52,452,238.40 : x
  2. Step 2: Convert to fraction form
    129,123,209.60/193,736,719.20 = 52,452,238.40/x
  3. Step 3: Cross multiply
    129,123,209.60x = 193,736,719.20 × 52,452,238.40
  4. Step 4: Simplify right side
    129,123,209.60x = 10,161,924,582,312,256
  5. Step 5: Solve for x
    x = 10,161,924,582,312,256/129,123,209.60
  6. Step 6: Final answer
    x = 78,699,442.29

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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.