Home / 129,584,506.43-194,425,713.85-77,805,213.35

Finding the Fourth Proportional to 129,584,506.43, 194,425,713.85 and 77,805,213.35

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Solution

The fourth proportional to 129,584,506.43, 194,425,713.85 and 77,805,213.35 is: 116,737,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,584,506.43 : 194,425,713.85 = 77,805,213.35 : x
  2. Step 2: Convert to fraction form
    129,584,506.43/194,425,713.85 = 77,805,213.35/x
  3. Step 3: Cross multiply
    129,584,506.43x = 194,425,713.85 × 77,805,213.35
  4. Step 4: Simplify right side
    129,584,506.43x = 15,127,334,146,825,298
  5. Step 5: Solve for x
    x = 15,127,334,146,825,298/129,584,506.43
  6. Step 6: Final answer
    x = 116,737,213.14

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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.