Home / 641,989,211.43-962,680,252.05-248,700,243.72

Finding the Fourth Proportional to 641,989,211.43, 962,680,252.05 and 248,700,243.72

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Solution

The fourth proportional to 641,989,211.43, 962,680,252.05 and 248,700,243.72 is: 372,932,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,989,211.43 : 962,680,252.05 = 248,700,243.72 : x
  2. Step 2: Convert to fraction form
    641,989,211.43/962,680,252.05 = 248,700,243.72/x
  3. Step 3: Cross multiply
    641,989,211.43x = 962,680,252.05 × 248,700,243.72
  4. Step 4: Simplify right side
    641,989,211.43x = 239,418,813,309,266,016
  5. Step 5: Solve for x
    x = 239,418,813,309,266,016/641,989,211.43
  6. Step 6: Final answer
    x = 372,932,767.48

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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.