Home / 12,219,616.38-16,861,196.07-7,061,981.88

Finding the Fourth Proportional to 12,219,616.38, 16,861,196.07 and 7,061,981.88

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Solution

The fourth proportional to 12,219,616.38, 16,861,196.07 and 7,061,981.88 is: 9,744,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,616.38 : 16,861,196.07 = 7,061,981.88 : x
  2. Step 2: Convert to fraction form
    12,219,616.38/16,861,196.07 = 7,061,981.88/x
  3. Step 3: Cross multiply
    12,219,616.38x = 16,861,196.07 × 7,061,981.88
  4. Step 4: Simplify right side
    12,219,616.38x = 119,073,461,121,467.22
  5. Step 5: Solve for x
    x = 119,073,461,121,467.22/12,219,616.38
  6. Step 6: Final answer
    x = 9,744,451.66

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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.