Home / 40,377,678.68-55,720,913.12-22,042,964.18

Finding the Fourth Proportional to 40,377,678.68, 55,720,913.12 and 22,042,964.18

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Solution

The fourth proportional to 40,377,678.68, 55,720,913.12 and 22,042,964.18 is: 30,419,135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,377,678.68 : 55,720,913.12 = 22,042,964.18 : x
  2. Step 2: Convert to fraction form
    40,377,678.68/55,720,913.12 = 22,042,964.18/x
  3. Step 3: Cross multiply
    40,377,678.68x = 55,720,913.12 × 22,042,964.18
  4. Step 4: Simplify right side
    40,377,678.68x = 1,228,254,092,175,461.75
  5. Step 5: Solve for x
    x = 1,228,254,092,175,461.75/40,377,678.68
  6. Step 6: Final answer
    x = 30,419,135.83

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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.