Home / 15,021,293.12-20,729,390-8,145,773.36

Finding the Fourth Proportional to 15,021,293.12, 20,729,390 and 8,145,773.36

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Solution

The fourth proportional to 15,021,293.12, 20,729,390 and 8,145,773.36 is: 11,241,170.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021,293.12 : 20,729,390 = 8,145,773.36 : x
  2. Step 2: Convert to fraction form
    15,021,293.12/20,729,390 = 8,145,773.36/x
  3. Step 3: Cross multiply
    15,021,293.12x = 20,729,390 × 8,145,773.36
  4. Step 4: Simplify right side
    15,021,293.12x = 168,856,912,831,050.41
  5. Step 5: Solve for x
    x = 168,856,912,831,050.41/15,021,293.12
  6. Step 6: Final answer
    x = 11,241,170.22

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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.