Home / 123,781,716.18-170,822,863.79-68,029,112.81

Finding the Fourth Proportional to 123,781,716.18, 170,822,863.79 and 68,029,112.81

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Solution

The fourth proportional to 123,781,716.18, 170,822,863.79 and 68,029,112.81 is: 93,882,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781,716.18 : 170,822,863.79 = 68,029,112.81 : x
  2. Step 2: Convert to fraction form
    123,781,716.18/170,822,863.79 = 68,029,112.81/x
  3. Step 3: Cross multiply
    123,781,716.18x = 170,822,863.79 × 68,029,112.81
  4. Step 4: Simplify right side
    123,781,716.18x = 11,620,927,870,102,916
  5. Step 5: Solve for x
    x = 11,620,927,870,102,916/123,781,716.18
  6. Step 6: Final answer
    x = 93,882,426.49

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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.