Home / 69,132,945.27-103,698,083.03-20,643,653.91

Finding the Fourth Proportional to 69,132,945.27, 103,698,083.03 and 20,643,653.91

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Solution

The fourth proportional to 69,132,945.27, 103,698,083.03 and 20,643,653.91 is: 30,965,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,132,945.27 : 103,698,083.03 = 20,643,653.91 : x
  2. Step 2: Convert to fraction form
    69,132,945.27/103,698,083.03 = 20,643,653.91/x
  3. Step 3: Cross multiply
    69,132,945.27x = 103,698,083.03 × 20,643,653.91
  4. Step 4: Simplify right side
    69,132,945.27x = 2,140,707,337,098,546
  5. Step 5: Solve for x
    x = 2,140,707,337,098,546/69,132,945.27
  6. Step 6: Final answer
    x = 30,965,082.26

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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.