Home / 852,339,169.20-1,278,508,753.80-393,174,145.20

Finding the Fourth Proportional to 852,339,169.20, 1,278,508,753.80 and 393,174,145.20

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Solution

The fourth proportional to 852,339,169.20, 1,278,508,753.80 and 393,174,145.20 is: 589,761,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,339,169.20 : 1,278,508,753.80 = 393,174,145.20 : x
  2. Step 2: Convert to fraction form
    852,339,169.20/1,278,508,753.80 = 393,174,145.20/x
  3. Step 3: Cross multiply
    852,339,169.20x = 1,278,508,753.80 × 393,174,145.20
  4. Step 4: Simplify right side
    852,339,169.20x = 502,676,586,406,032,192
  5. Step 5: Solve for x
    x = 502,676,586,406,032,192/852,339,169.20
  6. Step 6: Final answer
    x = 589,761,217.80

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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.