Home / 20,587,843.60-30,892,824.60-8,621,789.20

Finding the Fourth Proportional to 20,587,843.60, 30,892,824.60 and 8,621,789.20

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Solution

The fourth proportional to 20,587,843.60, 30,892,824.60 and 8,621,789.20 is: 12,937,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,843.60 : 30,892,824.60 = 8,621,789.20 : x
  2. Step 2: Convert to fraction form
    20,587,843.60/30,892,824.60 = 8,621,789.20/x
  3. Step 3: Cross multiply
    20,587,843.60x = 30,892,824.60 × 8,621,789.20
  4. Step 4: Simplify right side
    20,587,843.60x = 266,351,421,493,774.31
  5. Step 5: Solve for x
    x = 266,351,421,493,774.31/20,587,843.60
  6. Step 6: Final answer
    x = 12,937,315.18

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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.