Home / 13,608,472.20-20,385,152.10-8,475,145.80

Finding the Fourth Proportional to 13,608,472.20, 20,385,152.10 and 8,475,145.80

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Solution

The fourth proportional to 13,608,472.20, 20,385,152.10 and 8,475,145.80 is: 12,695,557.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,472.20 : 20,385,152.10 = 8,475,145.80 : x
  2. Step 2: Convert to fraction form
    13,608,472.20/20,385,152.10 = 8,475,145.80/x
  3. Step 3: Cross multiply
    13,608,472.20x = 20,385,152.10 × 8,475,145.80
  4. Step 4: Simplify right side
    13,608,472.20x = 172,767,136,202,676.22
  5. Step 5: Solve for x
    x = 172,767,136,202,676.22/13,608,472.20
  6. Step 6: Final answer
    x = 12,695,557.13

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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.