Home / 14,156,768.66-21,131,803.16-12,147,921.68

Finding the Fourth Proportional to 14,156,768.66, 21,131,803.16 and 12,147,921.68

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Solution

The fourth proportional to 14,156,768.66, 21,131,803.16 and 12,147,921.68 is: 18,133,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156,768.66 : 21,131,803.16 = 12,147,921.68 : x
  2. Step 2: Convert to fraction form
    14,156,768.66/21,131,803.16 = 12,147,921.68/x
  3. Step 3: Cross multiply
    14,156,768.66x = 21,131,803.16 × 12,147,921.68
  4. Step 4: Simplify right side
    14,156,768.66x = 256,707,489,744,856.50
  5. Step 5: Solve for x
    x = 256,707,489,744,856.50/14,156,768.66
  6. Step 6: Final answer
    x = 18,133,198.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.