Home / 12,127,847.40-18,149,780.70-11,120,077.80

Finding the Fourth Proportional to 12,127,847.40, 18,149,780.70 and 11,120,077.80

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Solution

The fourth proportional to 12,127,847.40, 18,149,780.70 and 11,120,077.80 is: 16,641,615.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,847.40 : 18,149,780.70 = 11,120,077.80 : x
  2. Step 2: Convert to fraction form
    12,127,847.40/18,149,780.70 = 11,120,077.80/x
  3. Step 3: Cross multiply
    12,127,847.40x = 18,149,780.70 × 11,120,077.80
  4. Step 4: Simplify right side
    12,127,847.40x = 201,826,973,436,938.47
  5. Step 5: Solve for x
    x = 201,826,973,436,938.47/12,127,847.40
  6. Step 6: Final answer
    x = 16,641,615.51

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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.