Home / 12,219,717.70-18,340,074.15-5,406,775.30

Finding the Fourth Proportional to 12,219,717.70, 18,340,074.15 and 5,406,775.30

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Solution

The fourth proportional to 12,219,717.70, 18,340,074.15 and 5,406,775.30 is: 8,114,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,717.70 : 18,340,074.15 = 5,406,775.30 : x
  2. Step 2: Convert to fraction form
    12,219,717.70/18,340,074.15 = 5,406,775.30/x
  3. Step 3: Cross multiply
    12,219,717.70x = 18,340,074.15 × 5,406,775.30
  4. Step 4: Simplify right side
    12,219,717.70x = 99,160,659,914,388.48
  5. Step 5: Solve for x
    x = 99,160,659,914,388.48/12,219,717.70
  6. Step 6: Final answer
    x = 8,114,807.75

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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.