Home / 15,138,535.67-20,890,452.92-8,611,554.45

Finding the Fourth Proportional to 15,138,535.67, 20,890,452.92 and 8,611,554.45

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Solution

The fourth proportional to 15,138,535.67, 20,890,452.92 and 8,611,554.45 is: 11,883,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138,535.67 : 20,890,452.92 = 8,611,554.45 : x
  2. Step 2: Convert to fraction form
    15,138,535.67/20,890,452.92 = 8,611,554.45/x
  3. Step 3: Cross multiply
    15,138,535.67x = 20,890,452.92 × 8,611,554.45
  4. Step 4: Simplify right side
    15,138,535.67x = 179,899,272,762,683.69
  5. Step 5: Solve for x
    x = 179,899,272,762,683.69/15,138,535.67
  6. Step 6: Final answer
    x = 11,883,531.98

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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.