Home / 357,981,206.52-494,500,355.82-280,641,188.28

Finding the Fourth Proportional to 357,981,206.52, 494,500,355.82 and 280,641,188.28

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Solution

The fourth proportional to 357,981,206.52, 494,500,355.82 and 280,641,188.28 is: 387,666,069.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,981,206.52 : 494,500,355.82 = 280,641,188.28 : x
  2. Step 2: Convert to fraction form
    357,981,206.52/494,500,355.82 = 280,641,188.28/x
  3. Step 3: Cross multiply
    357,981,206.52x = 494,500,355.82 × 280,641,188.28
  4. Step 4: Simplify right side
    357,981,206.52x = 138,777,167,462,207,600
  5. Step 5: Solve for x
    x = 138,777,167,462,207,600/357,981,206.52
  6. Step 6: Final answer
    x = 387,666,069.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.