Home / 485,918,552.30-728,877,828.45-448,505,105.90

Finding the Fourth Proportional to 485,918,552.30, 728,877,828.45 and 448,505,105.90

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Solution

The fourth proportional to 485,918,552.30, 728,877,828.45 and 448,505,105.90 is: 672,757,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,918,552.30 : 728,877,828.45 = 448,505,105.90 : x
  2. Step 2: Convert to fraction form
    485,918,552.30/728,877,828.45 = 448,505,105.90/x
  3. Step 3: Cross multiply
    485,918,552.30x = 728,877,828.45 × 448,505,105.90
  4. Step 4: Simplify right side
    485,918,552.30x = 326,905,427,637,129,280
  5. Step 5: Solve for x
    x = 326,905,427,637,129,280/485,918,552.30
  6. Step 6: Final answer
    x = 672,757,658.85

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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.