Home / 6,391,680.60-9,587,520.90-2,131,987.80

Finding the Fourth Proportional to 6,391,680.60, 9,587,520.90 and 2,131,987.80

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Solution

The fourth proportional to 6,391,680.60, 9,587,520.90 and 2,131,987.80 is: 3,197,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,680.60 : 9,587,520.90 = 2,131,987.80 : x
  2. Step 2: Convert to fraction form
    6,391,680.60/9,587,520.90 = 2,131,987.80/x
  3. Step 3: Cross multiply
    6,391,680.60x = 9,587,520.90 × 2,131,987.80
  4. Step 4: Simplify right side
    6,391,680.60x = 20,440,477,591,045.02
  5. Step 5: Solve for x
    x = 20,440,477,591,045.02/6,391,680.60
  6. Step 6: Final answer
    x = 3,197,981.70

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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.