Home / 12,309,438.30-18,437,585.40-8,004,766.20

Finding the Fourth Proportional to 12,309,438.30, 18,437,585.40 and 8,004,766.20

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Solution

The fourth proportional to 12,309,438.30, 18,437,585.40 and 8,004,766.20 is: 11,989,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309,438.30 : 18,437,585.40 = 8,004,766.20 : x
  2. Step 2: Convert to fraction form
    12,309,438.30/18,437,585.40 = 8,004,766.20/x
  3. Step 3: Cross multiply
    12,309,438.30x = 18,437,585.40 × 8,004,766.20
  4. Step 4: Simplify right side
    12,309,438.30x = 147,588,560,419,533.47
  5. Step 5: Solve for x
    x = 147,588,560,419,533.47/12,309,438.30
  6. Step 6: Final answer
    x = 11,989,869.63

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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.