Home / 664,398,370.62-916,895,976.21-382,140,359.82

Finding the Fourth Proportional to 664,398,370.62, 916,895,976.21 and 382,140,359.82

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Solution

The fourth proportional to 664,398,370.62, 916,895,976.21 and 382,140,359.82 is: 527,368,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,398,370.62 : 916,895,976.21 = 382,140,359.82 : x
  2. Step 2: Convert to fraction form
    664,398,370.62/916,895,976.21 = 382,140,359.82/x
  3. Step 3: Cross multiply
    664,398,370.62x = 916,895,976.21 × 382,140,359.82
  4. Step 4: Simplify right side
    664,398,370.62x = 350,382,958,266,399,552
  5. Step 5: Solve for x
    x = 350,382,958,266,399,552/664,398,370.62
  6. Step 6: Final answer
    x = 527,368,780.18

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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.