Home / 8,165,981.88-12,240,738.72-5,135,513.40

Finding the Fourth Proportional to 8,165,981.88, 12,240,738.72 and 5,135,513.40

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Solution

The fourth proportional to 8,165,981.88, 12,240,738.72 and 5,135,513.40 is: 7,698,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165,981.88 : 12,240,738.72 = 5,135,513.40 : x
  2. Step 2: Convert to fraction form
    8,165,981.88/12,240,738.72 = 5,135,513.40/x
  3. Step 3: Cross multiply
    8,165,981.88x = 12,240,738.72 × 5,135,513.40
  4. Step 4: Simplify right side
    8,165,981.88x = 62,862,477,722,458.86
  5. Step 5: Solve for x
    x = 62,862,477,722,458.86/8,165,981.88
  6. Step 6: Final answer
    x = 7,698,091.75

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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.