Home / 19,321,407.40-28,977,963.90-8,538,687.40

Finding the Fourth Proportional to 19,321,407.40, 28,977,963.90 and 8,538,687.40

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Solution

The fourth proportional to 19,321,407.40, 28,977,963.90 and 8,538,687.40 is: 12,806,198.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321,407.40 : 28,977,963.90 = 8,538,687.40 : x
  2. Step 2: Convert to fraction form
    19,321,407.40/28,977,963.90 = 8,538,687.40/x
  3. Step 3: Cross multiply
    19,321,407.40x = 28,977,963.90 × 8,538,687.40
  4. Step 4: Simplify right side
    19,321,407.40x = 247,433,775,230,584.84
  5. Step 5: Solve for x
    x = 247,433,775,230,584.84/19,321,407.40
  6. Step 6: Final answer
    x = 12,806,198.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.