Home / 12,589,965.80-18,889,614.30-4,070,580.20

Finding the Fourth Proportional to 12,589,965.80, 18,889,614.30 and 4,070,580.20

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Solution

The fourth proportional to 12,589,965.80, 18,889,614.30 and 4,070,580.20 is: 6,107,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,965.80 : 18,889,614.30 = 4,070,580.20 : x
  2. Step 2: Convert to fraction form
    12,589,965.80/18,889,614.30 = 4,070,580.20/x
  3. Step 3: Cross multiply
    12,589,965.80x = 18,889,614.30 × 4,070,580.20
  4. Step 4: Simplify right side
    12,589,965.80x = 76,891,689,955,216.86
  5. Step 5: Solve for x
    x = 76,891,689,955,216.86/12,589,965.80
  6. Step 6: Final answer
    x = 6,107,378.78

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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.