Home / 12,219,619.40-16,861,200.20-7,061,984.88

Finding the Fourth Proportional to 12,219,619.40, 16,861,200.20 and 7,061,984.88

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Solution

The fourth proportional to 12,219,619.40, 16,861,200.20 and 7,061,984.88 is: 9,744,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,619.40 : 16,861,200.20 = 7,061,984.88 : x
  2. Step 2: Convert to fraction form
    12,219,619.40/16,861,200.20 = 7,061,984.88/x
  3. Step 3: Cross multiply
    12,219,619.40x = 16,861,200.20 × 7,061,984.88
  4. Step 4: Simplify right side
    12,219,619.40x = 119,073,540,871,052.97
  5. Step 5: Solve for x
    x = 119,073,540,871,052.97/12,219,619.40
  6. Step 6: Final answer
    x = 9,744,455.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.