Home / 99,386,947.40-149,164,401.90-38,846,121.80

Finding the Fourth Proportional to 99,386,947.40, 149,164,401.90 and 38,846,121.80

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Solution

The fourth proportional to 99,386,947.40, 149,164,401.90 and 38,846,121.80 is: 58,302,007.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,386,947.40 : 149,164,401.90 = 38,846,121.80 : x
  2. Step 2: Convert to fraction form
    99,386,947.40/149,164,401.90 = 38,846,121.80/x
  3. Step 3: Cross multiply
    99,386,947.40x = 149,164,401.90 × 38,846,121.80
  4. Step 4: Simplify right side
    99,386,947.40x = 5,794,458,524,431,551
  5. Step 5: Solve for x
    x = 5,794,458,524,431,551/99,386,947.40
  6. Step 6: Final answer
    x = 58,302,007.22

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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.