Home / 129,343,082.30-194,014,623.45-121,690,331.90

Finding the Fourth Proportional to 129,343,082.30, 194,014,623.45 and 121,690,331.90

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Solution

The fourth proportional to 129,343,082.30, 194,014,623.45 and 121,690,331.90 is: 182,535,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,343,082.30 : 194,014,623.45 = 121,690,331.90 : x
  2. Step 2: Convert to fraction form
    129,343,082.30/194,014,623.45 = 121,690,331.90/x
  3. Step 3: Cross multiply
    129,343,082.30x = 194,014,623.45 × 121,690,331.90
  4. Step 4: Simplify right side
    129,343,082.30x = 23,609,703,921,084,024
  5. Step 5: Solve for x
    x = 23,609,703,921,084,024/129,343,082.30
  6. Step 6: Final answer
    x = 182,535,497.85

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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.