Home / 8,072,067.40-12,087,105.90-5,216,720.20

Finding the Fourth Proportional to 8,072,067.40, 12,087,105.90 and 5,216,720.20

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Solution

The fourth proportional to 8,072,067.40, 12,087,105.90 and 5,216,720.20 is: 7,811,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072,067.40 : 12,087,105.90 = 5,216,720.20 : x
  2. Step 2: Convert to fraction form
    8,072,067.40/12,087,105.90 = 5,216,720.20/x
  3. Step 3: Cross multiply
    8,072,067.40x = 12,087,105.90 × 5,216,720.20
  4. Step 4: Simplify right side
    8,072,067.40x = 63,055,049,508,069.19
  5. Step 5: Solve for x
    x = 63,055,049,508,069.19/8,072,067.40
  6. Step 6: Final answer
    x = 7,811,511.77

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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.