Home / 12,129,469.70-18,194,204.55-10,302,887.30

Finding the Fourth Proportional to 12,129,469.70, 18,194,204.55 and 10,302,887.30

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Solution

The fourth proportional to 12,129,469.70, 18,194,204.55 and 10,302,887.30 is: 15,454,330.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,469.70 : 18,194,204.55 = 10,302,887.30 : x
  2. Step 2: Convert to fraction form
    12,129,469.70/18,194,204.55 = 10,302,887.30/x
  3. Step 3: Cross multiply
    12,129,469.70x = 18,194,204.55 × 10,302,887.30
  4. Step 4: Simplify right side
    12,129,469.70x = 187,452,838,991,797.25
  5. Step 5: Solve for x
    x = 187,452,838,991,797.25/12,129,469.70
  6. Step 6: Final answer
    x = 15,454,330.95

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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.