Home / 392,494,711.80-588,742,067.70-239,061,790.20

Finding the Fourth Proportional to 392,494,711.80, 588,742,067.70 and 239,061,790.20

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Solution

The fourth proportional to 392,494,711.80, 588,742,067.70 and 239,061,790.20 is: 358,592,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,494,711.80 : 588,742,067.70 = 239,061,790.20 : x
  2. Step 2: Convert to fraction form
    392,494,711.80/588,742,067.70 = 239,061,790.20/x
  3. Step 3: Cross multiply
    392,494,711.80x = 588,742,067.70 × 239,061,790.20
  4. Step 4: Simplify right side
    392,494,711.80x = 140,745,732,670,411,600
  5. Step 5: Solve for x
    x = 140,745,732,670,411,600/392,494,711.80
  6. Step 6: Final answer
    x = 358,592,685.30

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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.