Home / 21,603,574.31-29,815,242.94-13,236,496.82

Finding the Fourth Proportional to 21,603,574.31, 29,815,242.94 and 13,236,496.82

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Solution

The fourth proportional to 21,603,574.31, 29,815,242.94 and 13,236,496.82 is: 18,267,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603,574.31 : 29,815,242.94 = 13,236,496.82 : x
  2. Step 2: Convert to fraction form
    21,603,574.31/29,815,242.94 = 13,236,496.82/x
  3. Step 3: Cross multiply
    21,603,574.31x = 29,815,242.94 × 13,236,496.82
  4. Step 4: Simplify right side
    21,603,574.31x = 394,649,368,435,369.50
  5. Step 5: Solve for x
    x = 394,649,368,435,369.50/21,603,574.31
  6. Step 6: Final answer
    x = 18,267,781.19

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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.