Home / 12,257,758.20-18,358,643.70-7,218,910.20

Finding the Fourth Proportional to 12,257,758.20, 18,358,643.70 and 7,218,910.20

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Solution

The fourth proportional to 12,257,758.20, 18,358,643.70 and 7,218,910.20 is: 10,811,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257,758.20 : 18,358,643.70 = 7,218,910.20 : x
  2. Step 2: Convert to fraction form
    12,257,758.20/18,358,643.70 = 7,218,910.20/x
  3. Step 3: Cross multiply
    12,257,758.20x = 18,358,643.70 × 7,218,910.20
  4. Step 4: Simplify right side
    12,257,758.20x = 132,529,400,264,095.73
  5. Step 5: Solve for x
    x = 132,529,400,264,095.73/12,257,758.20
  6. Step 6: Final answer
    x = 10,811,879.15

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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.