Home / 129,584,510.96-194,425,720.62-77,805,217.85

Finding the Fourth Proportional to 129,584,510.96, 194,425,720.62 and 77,805,217.85

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Solution

The fourth proportional to 129,584,510.96, 194,425,720.62 and 77,805,217.85 is: 116,737,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,584,510.96 : 194,425,720.62 = 77,805,217.85 : x
  2. Step 2: Convert to fraction form
    129,584,510.96/194,425,720.62 = 77,805,217.85/x
  3. Step 3: Cross multiply
    129,584,510.96x = 194,425,720.62 × 77,805,217.85
  4. Step 4: Simplify right side
    129,584,510.96x = 15,127,335,548,968,404
  5. Step 5: Solve for x
    x = 15,127,335,548,968,404/129,584,510.96
  6. Step 6: Final answer
    x = 116,737,219.88

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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.