Home / 12,738,743.10-17,583,078.15-8,391,002.94

Finding the Fourth Proportional to 12,738,743.10, 17,583,078.15 and 8,391,002.94

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Solution

The fourth proportional to 12,738,743.10, 17,583,078.15 and 8,391,002.94 is: 11,581,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738,743.10 : 17,583,078.15 = 8,391,002.94 : x
  2. Step 2: Convert to fraction form
    12,738,743.10/17,583,078.15 = 8,391,002.94/x
  3. Step 3: Cross multiply
    12,738,743.10x = 17,583,078.15 × 8,391,002.94
  4. Step 4: Simplify right side
    12,738,743.10x = 147,539,660,450,899.75
  5. Step 5: Solve for x
    x = 147,539,660,450,899.75/12,738,743.10
  6. Step 6: Final answer
    x = 11,581,963.72

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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.