Home / 12,456,502.20-18,684,753.30-12,338,537.40

Finding the Fourth Proportional to 12,456,502.20, 18,684,753.30 and 12,338,537.40

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Solution

The fourth proportional to 12,456,502.20, 18,684,753.30 and 12,338,537.40 is: 18,507,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,502.20 : 18,684,753.30 = 12,338,537.40 : x
  2. Step 2: Convert to fraction form
    12,456,502.20/18,684,753.30 = 12,338,537.40/x
  3. Step 3: Cross multiply
    12,456,502.20x = 18,684,753.30 × 12,338,537.40
  4. Step 4: Simplify right side
    12,456,502.20x = 230,542,527,401,823.44
  5. Step 5: Solve for x
    x = 230,542,527,401,823.44/12,456,502.20
  6. Step 6: Final answer
    x = 18,507,806.10

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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.