Home / 129,508,874.60-194,238,428.70-38,635,428.20

Finding the Fourth Proportional to 129,508,874.60, 194,238,428.70 and 38,635,428.20

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Solution

The fourth proportional to 129,508,874.60, 194,238,428.70 and 38,635,428.20 is: 57,945,719.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,508,874.60 : 194,238,428.70 = 38,635,428.20 : x
  2. Step 2: Convert to fraction form
    129,508,874.60/194,238,428.70 = 38,635,428.20/x
  3. Step 3: Cross multiply
    129,508,874.60x = 194,238,428.70 × 38,635,428.20
  4. Step 4: Simplify right side
    129,508,874.60x = 7,504,484,865,719,669
  5. Step 5: Solve for x
    x = 7,504,484,865,719,669/129,508,874.60
  6. Step 6: Final answer
    x = 57,945,719.08

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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.