Home / 154,147,229.73-212,722,949.31-83,582,711.71

Finding the Fourth Proportional to 154,147,229.73, 212,722,949.31 and 83,582,711.71

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Solution

The fourth proportional to 154,147,229.73, 212,722,949.31 and 83,582,711.71 is: 115,344,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,147,229.73 : 212,722,949.31 = 83,582,711.71 : x
  2. Step 2: Convert to fraction form
    154,147,229.73/212,722,949.31 = 83,582,711.71/x
  3. Step 3: Cross multiply
    154,147,229.73x = 212,722,949.31 × 83,582,711.71
  4. Step 4: Simplify right side
    154,147,229.73x = 17,779,960,946,278,672
  5. Step 5: Solve for x
    x = 17,779,960,946,278,672/154,147,229.73
  6. Step 6: Final answer
    x = 115,344,018.69

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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.