Home / 138,466,191.76-207,347,718.18-83,099,175.16

Finding the Fourth Proportional to 138,466,191.76, 207,347,718.18 and 83,099,175.16

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Solution

The fourth proportional to 138,466,191.76, 207,347,718.18 and 83,099,175.16 is: 124,437,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,466,191.76 : 207,347,718.18 = 83,099,175.16 : x
  2. Step 2: Convert to fraction form
    138,466,191.76/207,347,718.18 = 83,099,175.16/x
  3. Step 3: Cross multiply
    138,466,191.76x = 207,347,718.18 × 83,099,175.16
  4. Step 4: Simplify right side
    138,466,191.76x = 17,230,424,352,066,136
  5. Step 5: Solve for x
    x = 17,230,424,352,066,136/138,466,191.76
  6. Step 6: Final answer
    x = 124,437,771.65

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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.