Home / 103,676,397-155,539,789.74-31,872,813

Finding the Fourth Proportional to 103,676,397, 155,539,789.74 and 31,872,813

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Solution

The fourth proportional to 103,676,397, 155,539,789.74 and 31,872,813 is: 47,816,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676,397 : 155,539,789.74 = 31,872,813 : x
  2. Step 2: Convert to fraction form
    103,676,397/155,539,789.74 = 31,872,813/x
  3. Step 3: Cross multiply
    103,676,397x = 155,539,789.74 × 31,872,813
  4. Step 4: Simplify right side
    103,676,397x = 4,957,490,632,442,339
  5. Step 5: Solve for x
    x = 4,957,490,632,442,339/103,676,397
  6. Step 6: Final answer
    x = 47,816,964.86

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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.