Home / 66,965,134.16-100,457,144.76-21,511,689.68

Finding the Fourth Proportional to 66,965,134.16, 100,457,144.76 and 21,511,689.68

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Solution

The fourth proportional to 66,965,134.16, 100,457,144.76 and 21,511,689.68 is: 32,270,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,965,134.16 : 100,457,144.76 = 21,511,689.68 : x
  2. Step 2: Convert to fraction form
    66,965,134.16/100,457,144.76 = 21,511,689.68/x
  3. Step 3: Cross multiply
    66,965,134.16x = 100,457,144.76 × 21,511,689.68
  4. Step 4: Simplify right side
    66,965,134.16x = 2,161,002,924,215,958.25
  5. Step 5: Solve for x
    x = 2,161,002,924,215,958.25/66,965,134.16
  6. Step 6: Final answer
    x = 32,270,568.13

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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.