Home / 782,654,861.65-1,080,181,771.10-477,305,042.02

Finding the Fourth Proportional to 782,654,861.65, 1,080,181,771.10 and 477,305,042.02

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Solution

The fourth proportional to 782,654,861.65, 1,080,181,771.10 and 477,305,042.02 is: 658,752,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,654,861.65 : 1,080,181,771.10 = 477,305,042.02 : x
  2. Step 2: Convert to fraction form
    782,654,861.65/1,080,181,771.10 = 477,305,042.02/x
  3. Step 3: Cross multiply
    782,654,861.65x = 1,080,181,771.10 × 477,305,042.02
  4. Step 4: Simplify right side
    782,654,861.65x = 515,576,205,649,593,792
  5. Step 5: Solve for x
    x = 515,576,205,649,593,792/782,654,861.65
  6. Step 6: Final answer
    x = 658,752,958.57

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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.