Home / 12,258,046.20-18,359,075.70-7,219,198.20

Finding the Fourth Proportional to 12,258,046.20, 18,359,075.70 and 7,219,198.20

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Solution

The fourth proportional to 12,258,046.20, 18,359,075.70 and 7,219,198.20 is: 10,812,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258,046.20 : 18,359,075.70 = 7,219,198.20 : x
  2. Step 2: Convert to fraction form
    12,258,046.20/18,359,075.70 = 7,219,198.20/x
  3. Step 3: Cross multiply
    12,258,046.20x = 18,359,075.70 × 7,219,198.20
  4. Step 4: Simplify right side
    12,258,046.20x = 132,537,806,247,103.73
  5. Step 5: Solve for x
    x = 132,537,806,247,103.73/12,258,046.20
  6. Step 6: Final answer
    x = 10,812,310.88

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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.