Home / 18,338,337.20-27,519,947.40-11,932,986.80

Finding the Fourth Proportional to 18,338,337.20, 27,519,947.40 and 11,932,986.80

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Solution

The fourth proportional to 18,338,337.20, 27,519,947.40 and 11,932,986.80 is: 17,907,576.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338,337.20 : 27,519,947.40 = 11,932,986.80 : x
  2. Step 2: Convert to fraction form
    18,338,337.20/27,519,947.40 = 11,932,986.80/x
  3. Step 3: Cross multiply
    18,338,337.20x = 27,519,947.40 × 11,932,986.80
  4. Step 4: Simplify right side
    18,338,337.20x = 328,395,169,060,894.31
  5. Step 5: Solve for x
    x = 328,395,169,060,894.31/18,338,337.20
  6. Step 6: Final answer
    x = 17,907,576.11

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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.