Home / 291,440,270.92-402,187,965.78-167,678,465.80

Finding the Fourth Proportional to 291,440,270.92, 402,187,965.78 and 167,678,465.80

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Solution

The fourth proportional to 291,440,270.92, 402,187,965.78 and 167,678,465.80 is: 231,396,508.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,440,270.92 : 402,187,965.78 = 167,678,465.80 : x
  2. Step 2: Convert to fraction form
    291,440,270.92/402,187,965.78 = 167,678,465.80/x
  3. Step 3: Cross multiply
    291,440,270.92x = 402,187,965.78 × 167,678,465.80
  4. Step 4: Simplify right side
    291,440,270.92x = 67,438,261,065,213,304
  5. Step 5: Solve for x
    x = 67,438,261,065,213,304/291,440,270.92
  6. Step 6: Final answer
    x = 231,396,508.29

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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.