Home / 13,457,456.20-20,162,127.30-8,189,702.20

Finding the Fourth Proportional to 13,457,456.20, 20,162,127.30 and 8,189,702.20

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Solution

The fourth proportional to 13,457,456.20, 20,162,127.30 and 8,189,702.20 is: 12,269,913.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,456.20 : 20,162,127.30 = 8,189,702.20 : x
  2. Step 2: Convert to fraction form
    13,457,456.20/20,162,127.30 = 8,189,702.20/x
  3. Step 3: Cross multiply
    13,457,456.20x = 20,162,127.30 × 8,189,702.20
  4. Step 4: Simplify right side
    13,457,456.20x = 165,121,818,305,490.06
  5. Step 5: Solve for x
    x = 165,121,818,305,490.06/13,457,456.20
  6. Step 6: Final answer
    x = 12,269,913.11

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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.