Home / 39,247,680.10-54,162,861.42-21,845,939.80

Finding the Fourth Proportional to 39,247,680.10, 54,162,861.42 and 21,845,939.80

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Solution

The fourth proportional to 39,247,680.10, 54,162,861.42 and 21,845,939.80 is: 30,147,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247,680.10 : 54,162,861.42 = 21,845,939.80 : x
  2. Step 2: Convert to fraction form
    39,247,680.10/54,162,861.42 = 21,845,939.80/x
  3. Step 3: Cross multiply
    39,247,680.10x = 54,162,861.42 × 21,845,939.80
  4. Step 4: Simplify right side
    39,247,680.10x = 1,183,238,609,977,062.50
  5. Step 5: Solve for x
    x = 1,183,238,609,977,062.50/39,247,680.10
  6. Step 6: Final answer
    x = 30,147,988.54

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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.