Home / 68,274,121.71-102,436,983.69-40,999,429.61

Finding the Fourth Proportional to 68,274,121.71, 102,436,983.69 and 40,999,429.61

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Solution

The fourth proportional to 68,274,121.71, 102,436,983.69 and 40,999,429.61 is: 61,514,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,274,121.71 : 102,436,983.69 = 40,999,429.61 : x
  2. Step 2: Convert to fraction form
    68,274,121.71/102,436,983.69 = 40,999,429.61/x
  3. Step 3: Cross multiply
    68,274,121.71x = 102,436,983.69 × 40,999,429.61
  4. Step 4: Simplify right side
    68,274,121.71x = 4,199,857,901,746,687.50
  5. Step 5: Solve for x
    x = 4,199,857,901,746,687.50/68,274,121.71
  6. Step 6: Final answer
    x = 61,514,638.29

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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.