Home / 21,465,144.80-32,197,717.20-12,855,800.60

Finding the Fourth Proportional to 21,465,144.80, 32,197,717.20 and 12,855,800.60

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Solution

The fourth proportional to 21,465,144.80, 32,197,717.20 and 12,855,800.60 is: 19,283,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465,144.80 : 32,197,717.20 = 12,855,800.60 : x
  2. Step 2: Convert to fraction form
    21,465,144.80/32,197,717.20 = 12,855,800.60/x
  3. Step 3: Cross multiply
    21,465,144.80x = 32,197,717.20 × 12,855,800.60
  4. Step 4: Simplify right side
    21,465,144.80x = 413,927,432,098,390.31
  5. Step 5: Solve for x
    x = 413,927,432,098,390.31/21,465,144.80
  6. Step 6: Final answer
    x = 19,283,700.90

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1.5x scale

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.