Home / 1,119,168,046.30-1,678,752,069.45-392,062,279.90

Finding the Fourth Proportional to 1,119,168,046.30, 1,678,752,069.45 and 392,062,279.90

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Solution

The fourth proportional to 1,119,168,046.30, 1,678,752,069.45 and 392,062,279.90 is: 588,093,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,168,046.30 : 1,678,752,069.45 = 392,062,279.90 : x
  2. Step 2: Convert to fraction form
    1,119,168,046.30/1,678,752,069.45 = 392,062,279.90/x
  3. Step 3: Cross multiply
    1,119,168,046.30x = 1,678,752,069.45 × 392,062,279.90
  4. Step 4: Simplify right side
    1,119,168,046.30x = 658,175,363,735,410,176
  5. Step 5: Solve for x
    x = 658,175,363,735,410,176/1,119,168,046.30
  6. Step 6: Final answer
    x = 588,093,419.85

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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.