Home / 624,479,812.11-861,783,151.87-342,177,397.82

Finding the Fourth Proportional to 624,479,812.11, 861,783,151.87 and 342,177,397.82

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Solution

The fourth proportional to 624,479,812.11, 861,783,151.87 and 342,177,397.82 is: 472,205,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,479,812.11 : 861,783,151.87 = 342,177,397.82 : x
  2. Step 2: Convert to fraction form
    624,479,812.11/861,783,151.87 = 342,177,397.82/x
  3. Step 3: Cross multiply
    624,479,812.11x = 861,783,151.87 × 342,177,397.82
  4. Step 4: Simplify right side
    624,479,812.11x = 294,882,716,391,344,960
  5. Step 5: Solve for x
    x = 294,882,716,391,344,960/624,479,812.11
  6. Step 6: Final answer
    x = 472,205,363.04

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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.