Home / 11,980,568.90-17,986,801.20-8,103,051.71

Finding the Fourth Proportional to 11,980,568.90, 17,986,801.20 and 8,103,051.71

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Solution

The fourth proportional to 11,980,568.90, 17,986,801.20 and 8,103,051.71 is: 12,165,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980,568.90 : 17,986,801.20 = 8,103,051.71 : x
  2. Step 2: Convert to fraction form
    11,980,568.90/17,986,801.20 = 8,103,051.71/x
  3. Step 3: Cross multiply
    11,980,568.90x = 17,986,801.20 × 8,103,051.71
  4. Step 4: Simplify right side
    11,980,568.90x = 145,747,980,131,156.03
  5. Step 5: Solve for x
    x = 145,747,980,131,156.03/11,980,568.90
  6. Step 6: Final answer
    x = 12,165,363.88

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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.