Home / 312,665,803.28-469,002,696.20-82,632,900.50

Finding the Fourth Proportional to 312,665,803.28, 469,002,696.20 and 82,632,900.50

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Solution

The fourth proportional to 312,665,803.28, 469,002,696.20 and 82,632,900.50 is: 123,950,405.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,665,803.28 : 469,002,696.20 = 82,632,900.50 : x
  2. Step 2: Convert to fraction form
    312,665,803.28/469,002,696.20 = 82,632,900.50/x
  3. Step 3: Cross multiply
    312,665,803.28x = 469,002,696.20 × 82,632,900.50
  4. Step 4: Simplify right side
    312,665,803.28x = 38,755,053,129,326,328
  5. Step 5: Solve for x
    x = 38,755,053,129,326,328/312,665,803.28
  6. Step 6: Final answer
    x = 123,950,405.59

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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.