Home / 71,291,144.90-98,379,234.48-40,350,649.88

Finding the Fourth Proportional to 71,291,144.90, 98,379,234.48 and 40,350,649.88

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Solution

The fourth proportional to 71,291,144.90, 98,379,234.48 and 40,350,649.88 is: 55,682,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,291,144.90 : 98,379,234.48 = 40,350,649.88 : x
  2. Step 2: Convert to fraction form
    71,291,144.90/98,379,234.48 = 40,350,649.88/x
  3. Step 3: Cross multiply
    71,291,144.90x = 98,379,234.48 × 40,350,649.88
  4. Step 4: Simplify right side
    71,291,144.90x = 3,969,666,045,964,904.50
  5. Step 5: Solve for x
    x = 3,969,666,045,964,904.50/71,291,144.90
  6. Step 6: Final answer
    x = 55,682,456.10

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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.