Home / 20,158,748.20-30,230,259.90-8,791,445.80

Finding the Fourth Proportional to 20,158,748.20, 30,230,259.90 and 8,791,445.80

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Solution

The fourth proportional to 20,158,748.20, 30,230,259.90 and 8,791,445.80 is: 13,183,739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,748.20 : 30,230,259.90 = 8,791,445.80 : x
  2. Step 2: Convert to fraction form
    20,158,748.20/30,230,259.90 = 8,791,445.80/x
  3. Step 3: Cross multiply
    20,158,748.20x = 30,230,259.90 × 8,791,445.80
  4. Step 4: Simplify right side
    20,158,748.20x = 265,767,691,430,763.44
  5. Step 5: Solve for x
    x = 265,767,691,430,763.44/20,158,748.20
  6. Step 6: Final answer
    x = 13,183,739.82

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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.