Home / 13,513,129.92-20,269,689.72-5,426,103.12

Finding the Fourth Proportional to 13,513,129.92, 20,269,689.72 and 5,426,103.12

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Solution

The fourth proportional to 13,513,129.92, 20,269,689.72 and 5,426,103.12 is: 8,139,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,129.92 : 20,269,689.72 = 5,426,103.12 : x
  2. Step 2: Convert to fraction form
    13,513,129.92/20,269,689.72 = 5,426,103.12/x
  3. Step 3: Cross multiply
    13,513,129.92x = 20,269,689.72 × 5,426,103.12
  4. Step 4: Simplify right side
    13,513,129.92x = 109,985,426,631,123.92
  5. Step 5: Solve for x
    x = 109,985,426,631,123.92/13,513,129.92
  6. Step 6: Final answer
    x = 8,139,152.61

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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.