Home / 18,924,145.20-28,379,219.40-6,145,066.80

Finding the Fourth Proportional to 18,924,145.20, 28,379,219.40 and 6,145,066.80

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Solution

The fourth proportional to 18,924,145.20, 28,379,219.40 and 6,145,066.80 is: 9,215,327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924,145.20 : 28,379,219.40 = 6,145,066.80 : x
  2. Step 2: Convert to fraction form
    18,924,145.20/28,379,219.40 = 6,145,066.80/x
  3. Step 3: Cross multiply
    18,924,145.20x = 28,379,219.40 × 6,145,066.80
  4. Step 4: Simplify right side
    18,924,145.20x = 174,392,198,944,855.91
  5. Step 5: Solve for x
    x = 174,392,198,944,855.91/18,924,145.20
  6. Step 6: Final answer
    x = 9,215,327.67

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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.