Home / 12,219,615.38-16,861,194.68-7,061,980.88

Finding the Fourth Proportional to 12,219,615.38, 16,861,194.68 and 7,061,980.88

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Solution

The fourth proportional to 12,219,615.38, 16,861,194.68 and 7,061,980.88 is: 9,744,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,615.38 : 16,861,194.68 = 7,061,980.88 : x
  2. Step 2: Convert to fraction form
    12,219,615.38/16,861,194.68 = 7,061,980.88/x
  3. Step 3: Cross multiply
    12,219,615.38x = 16,861,194.68 × 7,061,980.88
  4. Step 4: Simplify right side
    12,219,615.38x = 119,073,434,444,117.72
  5. Step 5: Solve for x
    x = 119,073,434,444,117.72/12,219,615.38
  6. Step 6: Final answer
    x = 9,744,450.27

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1.5x scale

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.