Home / 279,744,086.40-419,616,129.60-274,369,315.20

Finding the Fourth Proportional to 279,744,086.40, 419,616,129.60 and 274,369,315.20

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Solution

The fourth proportional to 279,744,086.40, 419,616,129.60 and 274,369,315.20 is: 411,553,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,744,086.40 : 419,616,129.60 = 274,369,315.20 : x
  2. Step 2: Convert to fraction form
    279,744,086.40/419,616,129.60 = 274,369,315.20/x
  3. Step 3: Cross multiply
    279,744,086.40x = 419,616,129.60 × 274,369,315.20
  4. Step 4: Simplify right side
    279,744,086.40x = 115,129,790,125,226,448
  5. Step 5: Solve for x
    x = 115,129,790,125,226,448/279,744,086.40
  6. Step 6: Final answer
    x = 411,553,972.80

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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.