Home / 217,401,679.80-326,132,801.40-69,853,679.92

Finding the Fourth Proportional to 217,401,679.80, 326,132,801.40 and 69,853,679.92

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Solution

The fourth proportional to 217,401,679.80, 326,132,801.40 and 69,853,679.92 is: 104,790,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,401,679.80 : 326,132,801.40 = 69,853,679.92 : x
  2. Step 2: Convert to fraction form
    217,401,679.80/326,132,801.40 = 69,853,679.92/x
  3. Step 3: Cross multiply
    217,401,679.80x = 326,132,801.40 × 69,853,679.92
  4. Step 4: Simplify right side
    217,401,679.80x = 22,781,576,320,408,528
  5. Step 5: Solve for x
    x = 22,781,576,320,408,528/217,401,679.80
  6. Step 6: Final answer
    x = 104,790,249.74

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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.