Home / 12,378,440.40-18,532,231.20-10,961,264.40

Finding the Fourth Proportional to 12,378,440.40, 18,532,231.20 and 10,961,264.40

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Solution

The fourth proportional to 12,378,440.40, 18,532,231.20 and 10,961,264.40 is: 16,410,523.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,440.40 : 18,532,231.20 = 10,961,264.40 : x
  2. Step 2: Convert to fraction form
    12,378,440.40/18,532,231.20 = 10,961,264.40/x
  3. Step 3: Cross multiply
    12,378,440.40x = 18,532,231.20 × 10,961,264.40
  4. Step 4: Simplify right side
    12,378,440.40x = 203,136,686,105,129.28
  5. Step 5: Solve for x
    x = 203,136,686,105,129.28/12,378,440.40
  6. Step 6: Final answer
    x = 16,410,523.42

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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.