Home / 121,945,689.38-182,954,467.56-49,124,998.10

Finding the Fourth Proportional to 121,945,689.38, 182,954,467.56 and 49,124,998.10

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Solution

The fourth proportional to 121,945,689.38, 182,954,467.56 and 49,124,998.10 is: 73,701,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,945,689.38 : 182,954,467.56 = 49,124,998.10 : x
  2. Step 2: Convert to fraction form
    121,945,689.38/182,954,467.56 = 49,124,998.10/x
  3. Step 3: Cross multiply
    121,945,689.38x = 182,954,467.56 × 49,124,998.10
  4. Step 4: Simplify right side
    121,945,689.38x = 8,987,637,870,356,739
  5. Step 5: Solve for x
    x = 8,987,637,870,356,739/121,945,689.38
  6. Step 6: Final answer
    x = 73,701,972.71

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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.