Home / 12,378,439.40-18,532,229.70-10,961,263.40

Finding the Fourth Proportional to 12,378,439.40, 18,532,229.70 and 10,961,263.40

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Solution

The fourth proportional to 12,378,439.40, 18,532,229.70 and 10,961,263.40 is: 16,410,521.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,439.40 : 18,532,229.70 = 10,961,263.40 : x
  2. Step 2: Convert to fraction form
    12,378,439.40/18,532,229.70 = 10,961,263.40/x
  3. Step 3: Cross multiply
    12,378,439.40x = 18,532,229.70 × 10,961,263.40
  4. Step 4: Simplify right side
    12,378,439.40x = 203,136,651,131,002.97
  5. Step 5: Solve for x
    x = 203,136,651,131,002.97/12,378,439.40
  6. Step 6: Final answer
    x = 16,410,521.92

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1.5x scale

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.