Home / 15,021,268.56-20,729,356.08-8,145,748.80

Finding the Fourth Proportional to 15,021,268.56, 20,729,356.08 and 8,145,748.80

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Solution

The fourth proportional to 15,021,268.56, 20,729,356.08 and 8,145,748.80 is: 11,241,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021,268.56 : 20,729,356.08 = 8,145,748.80 : x
  2. Step 2: Convert to fraction form
    15,021,268.56/20,729,356.08 = 8,145,748.80/x
  3. Step 3: Cross multiply
    15,021,268.56x = 20,729,356.08 × 8,145,748.80
  4. Step 4: Simplify right side
    15,021,268.56x = 168,856,127,413,432.69
  5. Step 5: Solve for x
    x = 168,856,127,413,432.69/15,021,268.56
  6. Step 6: Final answer
    x = 11,241,136.31

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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.