Home / 8,072,078.40-12,087,122.40-5,216,731.20

Finding the Fourth Proportional to 8,072,078.40, 12,087,122.40 and 5,216,731.20

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Solution

The fourth proportional to 8,072,078.40, 12,087,122.40 and 5,216,731.20 is: 7,811,528.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072,078.40 : 12,087,122.40 = 5,216,731.20 : x
  2. Step 2: Convert to fraction form
    8,072,078.40/12,087,122.40 = 5,216,731.20/x
  3. Step 3: Cross multiply
    8,072,078.40x = 12,087,122.40 × 5,216,731.20
  4. Step 4: Simplify right side
    8,072,078.40x = 63,055,268,542,298.88
  5. Step 5: Solve for x
    x = 63,055,268,542,298.88/8,072,078.40
  6. Step 6: Final answer
    x = 7,811,528.26

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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.