Home / 13,431,346.20-20,147,019.30-9,680,203.80

Finding the Fourth Proportional to 13,431,346.20, 20,147,019.30 and 9,680,203.80

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Solution

The fourth proportional to 13,431,346.20, 20,147,019.30 and 9,680,203.80 is: 14,520,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,346.20 : 20,147,019.30 = 9,680,203.80 : x
  2. Step 2: Convert to fraction form
    13,431,346.20/20,147,019.30 = 9,680,203.80/x
  3. Step 3: Cross multiply
    13,431,346.20x = 20,147,019.30 × 9,680,203.80
  4. Step 4: Simplify right side
    13,431,346.20x = 195,027,252,786,533.38
  5. Step 5: Solve for x
    x = 195,027,252,786,533.38/13,431,346.20
  6. Step 6: Final answer
    x = 14,520,305.70

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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.