Home / 20,587,840.60-30,892,820.10-8,621,786.20

Finding the Fourth Proportional to 20,587,840.60, 30,892,820.10 and 8,621,786.20

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Solution

The fourth proportional to 20,587,840.60, 30,892,820.10 and 8,621,786.20 is: 12,937,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,840.60 : 30,892,820.10 = 8,621,786.20 : x
  2. Step 2: Convert to fraction form
    20,587,840.60/30,892,820.10 = 8,621,786.20/x
  3. Step 3: Cross multiply
    20,587,840.60x = 30,892,820.10 × 8,621,786.20
  4. Step 4: Simplify right side
    20,587,840.60x = 266,351,290,017,262.62
  5. Step 5: Solve for x
    x = 266,351,290,017,262.62/20,587,840.60
  6. Step 6: Final answer
    x = 12,937,310.68

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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.