Home / 672,543,001.30-1,008,814,501.95-488,876,991.70

Finding the Fourth Proportional to 672,543,001.30, 1,008,814,501.95 and 488,876,991.70

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Solution

The fourth proportional to 672,543,001.30, 1,008,814,501.95 and 488,876,991.70 is: 733,315,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,543,001.30 : 1,008,814,501.95 = 488,876,991.70 : x
  2. Step 2: Convert to fraction form
    672,543,001.30/1,008,814,501.95 = 488,876,991.70/x
  3. Step 3: Cross multiply
    672,543,001.30x = 1,008,814,501.95 × 488,876,991.70
  4. Step 4: Simplify right side
    672,543,001.30x = 493,186,198,896,649,792
  5. Step 5: Solve for x
    x = 493,186,198,896,649,792/672,543,001.30
  6. Step 6: Final answer
    x = 733,315,487.55

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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.