Home / 138,466,190.76-207,347,716.68-83,099,174.16

Finding the Fourth Proportional to 138,466,190.76, 207,347,716.68 and 83,099,174.16

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Solution

The fourth proportional to 138,466,190.76, 207,347,716.68 and 83,099,174.16 is: 124,437,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,466,190.76 : 207,347,716.68 = 83,099,174.16 : x
  2. Step 2: Convert to fraction form
    138,466,190.76/207,347,716.68 = 83,099,174.16/x
  3. Step 3: Cross multiply
    138,466,190.76x = 207,347,716.68 × 83,099,174.16
  4. Step 4: Simplify right side
    138,466,190.76x = 17,230,424,020,069,656
  5. Step 5: Solve for x
    x = 17,230,424,020,069,656/138,466,190.76
  6. Step 6: Final answer
    x = 124,437,770.16

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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.