Home / 18,738,044.10-28,107,066.15-8,660,348.10

Finding the Fourth Proportional to 18,738,044.10, 28,107,066.15 and 8,660,348.10

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Solution

The fourth proportional to 18,738,044.10, 28,107,066.15 and 8,660,348.10 is: 12,990,522.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,044.10 : 28,107,066.15 = 8,660,348.10 : x
  2. Step 2: Convert to fraction form
    18,738,044.10/28,107,066.15 = 8,660,348.10/x
  3. Step 3: Cross multiply
    18,738,044.10x = 28,107,066.15 × 8,660,348.10
  4. Step 4: Simplify right side
    18,738,044.10x = 243,416,976,928,726.78
  5. Step 5: Solve for x
    x = 243,416,976,928,726.78/18,738,044.10
  6. Step 6: Final answer
    x = 12,990,522.15

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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.