Home / 521,837,678.60-781,053,228.83-383,626,694.96

Finding the Fourth Proportional to 521,837,678.60, 781,053,228.83 and 383,626,694.96

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Solution

The fourth proportional to 521,837,678.60, 781,053,228.83 and 383,626,694.96 is: 574,187,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,837,678.60 : 781,053,228.83 = 383,626,694.96 : x
  2. Step 2: Convert to fraction form
    521,837,678.60/781,053,228.83 = 383,626,694.96/x
  3. Step 3: Cross multiply
    521,837,678.60x = 781,053,228.83 × 383,626,694.96
  4. Step 4: Simplify right side
    521,837,678.60x = 299,632,868,763,889,472
  5. Step 5: Solve for x
    x = 299,632,868,763,889,472/521,837,678.60
  6. Step 6: Final answer
    x = 574,187,876.90

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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.