Home / 136,158,442.53-187,872,952.55-81,159,416.61

Finding the Fourth Proportional to 136,158,442.53, 187,872,952.55 and 81,159,416.61

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Solution

The fourth proportional to 136,158,442.53, 187,872,952.55 and 81,159,416.61 is: 111,984,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,158,442.53 : 187,872,952.55 = 81,159,416.61 : x
  2. Step 2: Convert to fraction form
    136,158,442.53/187,872,952.55 = 81,159,416.61/x
  3. Step 3: Cross multiply
    136,158,442.53x = 187,872,952.55 × 81,159,416.61
  4. Step 4: Simplify right side
    136,158,442.53x = 15,247,659,225,350,414
  5. Step 5: Solve for x
    x = 15,247,659,225,350,414/136,158,442.53
  6. Step 6: Final answer
    x = 111,984,677.13

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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.