Home / 13,508,492.15-20,266,526.40-5,427,142.61

Finding the Fourth Proportional to 13,508,492.15, 20,266,526.40 and 5,427,142.61

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Solution

The fourth proportional to 13,508,492.15, 20,266,526.40 and 5,427,142.61 is: 8,142,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,492.15 : 20,266,526.40 = 5,427,142.61 : x
  2. Step 2: Convert to fraction form
    13,508,492.15/20,266,526.40 = 5,427,142.61/x
  3. Step 3: Cross multiply
    13,508,492.15x = 20,266,526.40 × 5,427,142.61
  4. Step 4: Simplify right side
    13,508,492.15x = 109,989,328,853,661.56
  5. Step 5: Solve for x
    x = 109,989,328,853,661.56/13,508,492.15
  6. Step 6: Final answer
    x = 8,142,235.83

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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.