Home / 138,466,168.74-207,347,683.71-83,099,152.11

Finding the Fourth Proportional to 138,466,168.74, 207,347,683.71 and 83,099,152.11

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Solution

The fourth proportional to 138,466,168.74, 207,347,683.71 and 83,099,152.11 is: 124,437,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,466,168.74 : 207,347,683.71 = 83,099,152.11 : x
  2. Step 2: Convert to fraction form
    138,466,168.74/207,347,683.71 = 83,099,152.11/x
  3. Step 3: Cross multiply
    138,466,168.74x = 207,347,683.71 × 83,099,152.11
  4. Step 4: Simplify right side
    138,466,168.74x = 17,230,416,708,273,460
  5. Step 5: Solve for x
    x = 17,230,416,708,273,460/138,466,168.74
  6. Step 6: Final answer
    x = 124,437,737.14

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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.