Home / 150,379,456.50-207,523,649.97-85,189,360.50

Finding the Fourth Proportional to 150,379,456.50, 207,523,649.97 and 85,189,360.50

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Solution

The fourth proportional to 150,379,456.50, 207,523,649.97 and 85,189,360.50 is: 117,561,317.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,379,456.50 : 207,523,649.97 = 85,189,360.50 : x
  2. Step 2: Convert to fraction form
    150,379,456.50/207,523,649.97 = 85,189,360.50/x
  3. Step 3: Cross multiply
    150,379,456.50x = 207,523,649.97 × 85,189,360.50
  4. Step 4: Simplify right side
    150,379,456.50x = 17,678,807,029,570,144
  5. Step 5: Solve for x
    x = 17,678,807,029,570,144/150,379,456.50
  6. Step 6: Final answer
    x = 117,561,317.49

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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.