Home / 83,414,792.88-115,071,508.44-72,386,063.28

Finding the Fourth Proportional to 83,414,792.88, 115,071,508.44 and 72,386,063.28

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Solution

The fourth proportional to 83,414,792.88, 115,071,508.44 and 72,386,063.28 is: 99,857,269.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414,792.88 : 115,071,508.44 = 72,386,063.28 : x
  2. Step 2: Convert to fraction form
    83,414,792.88/115,071,508.44 = 72,386,063.28/x
  3. Step 3: Cross multiply
    83,414,792.88x = 115,071,508.44 × 72,386,063.28
  4. Step 4: Simplify right side
    83,414,792.88x = 8,329,573,491,662,894
  5. Step 5: Solve for x
    x = 8,329,573,491,662,894/83,414,792.88
  6. Step 6: Final answer
    x = 99,857,269.96

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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.