Home / 12,136,780.80-16,758,835.20-8,080,819.20

Finding the Fourth Proportional to 12,136,780.80, 16,758,835.20 and 8,080,819.20

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Solution

The fourth proportional to 12,136,780.80, 16,758,835.20 and 8,080,819.20 is: 11,158,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136,780.80 : 16,758,835.20 = 8,080,819.20 : x
  2. Step 2: Convert to fraction form
    12,136,780.80/16,758,835.20 = 8,080,819.20/x
  3. Step 3: Cross multiply
    12,136,780.80x = 16,758,835.20 × 8,080,819.20
  4. Step 4: Simplify right side
    12,136,780.80x = 135,425,117,253,795.84
  5. Step 5: Solve for x
    x = 135,425,117,253,795.84/12,136,780.80
  6. Step 6: Final answer
    x = 11,158,240.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.