Home / 21,603,578.26-29,815,248.38-13,236,500.76

Finding the Fourth Proportional to 21,603,578.26, 29,815,248.38 and 13,236,500.76

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Solution

The fourth proportional to 21,603,578.26, 29,815,248.38 and 13,236,500.76 is: 18,267,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603,578.26 : 29,815,248.38 = 13,236,500.76 : x
  2. Step 2: Convert to fraction form
    21,603,578.26/29,815,248.38 = 13,236,500.76/x
  3. Step 3: Cross multiply
    21,603,578.26x = 29,815,248.38 × 13,236,500.76
  4. Step 4: Simplify right side
    21,603,578.26x = 394,649,557,841,458.75
  5. Step 5: Solve for x
    x = 394,649,557,841,458.75/21,603,578.26
  6. Step 6: Final answer
    x = 18,267,786.62

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1.5x scale

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.