Home / 12,378,428.40-18,532,213.20-10,961,252.40

Finding the Fourth Proportional to 12,378,428.40, 18,532,213.20 and 10,961,252.40

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Solution

The fourth proportional to 12,378,428.40, 18,532,213.20 and 10,961,252.40 is: 16,410,505.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,428.40 : 18,532,213.20 = 10,961,252.40 : x
  2. Step 2: Convert to fraction form
    12,378,428.40/18,532,213.20 = 10,961,252.40/x
  3. Step 3: Cross multiply
    12,378,428.40x = 18,532,213.20 × 10,961,252.40
  4. Step 4: Simplify right side
    12,378,428.40x = 203,136,266,415,811.69
  5. Step 5: Solve for x
    x = 203,136,266,415,811.69/12,378,428.40
  6. Step 6: Final answer
    x = 16,410,505.43

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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.