Home / 664,832,005.80-997,248,008.70-392,333,317.80

Finding the Fourth Proportional to 664,832,005.80, 997,248,008.70 and 392,333,317.80

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Solution

The fourth proportional to 664,832,005.80, 997,248,008.70 and 392,333,317.80 is: 588,499,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,832,005.80 : 997,248,008.70 = 392,333,317.80 : x
  2. Step 2: Convert to fraction form
    664,832,005.80/997,248,008.70 = 392,333,317.80/x
  3. Step 3: Cross multiply
    664,832,005.80x = 997,248,008.70 × 392,333,317.80
  4. Step 4: Simplify right side
    664,832,005.80x = 391,253,619,922,714,304
  5. Step 5: Solve for x
    x = 391,253,619,922,714,304/664,832,005.80
  6. Step 6: Final answer
    x = 588,499,976.70

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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.