Home / 12,257,302.20-18,357,959.70-7,218,454.20

Finding the Fourth Proportional to 12,257,302.20, 18,357,959.70 and 7,218,454.20

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Solution

The fourth proportional to 12,257,302.20, 18,357,959.70 and 7,218,454.20 is: 10,811,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257,302.20 : 18,357,959.70 = 7,218,454.20 : x
  2. Step 2: Convert to fraction form
    12,257,302.20/18,357,959.70 = 7,218,454.20/x
  3. Step 3: Cross multiply
    12,257,302.20x = 18,357,959.70 × 7,218,454.20
  4. Step 4: Simplify right side
    12,257,302.20x = 132,516,091,299,895.73
  5. Step 5: Solve for x
    x = 132,516,091,299,895.73/12,257,302.20
  6. Step 6: Final answer
    x = 10,811,195.57

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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.