Home / 8,278,859.88-12,420,356.54-2,887,587.77

Finding the Fourth Proportional to 8,278,859.88, 12,420,356.54 and 2,887,587.77

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Solution

The fourth proportional to 8,278,859.88, 12,420,356.54 and 2,887,587.77 is: 4,332,102.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,859.88 : 12,420,356.54 = 2,887,587.77 : x
  2. Step 2: Convert to fraction form
    8,278,859.88/12,420,356.54 = 2,887,587.77/x
  3. Step 3: Cross multiply
    8,278,859.88x = 12,420,356.54 × 2,887,587.77
  4. Step 4: Simplify right side
    8,278,859.88x = 35,864,869,567,403.80
  5. Step 5: Solve for x
    x = 35,864,869,567,403.80/8,278,859.88
  6. Step 6: Final answer
    x = 4,332,102.50

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1.5x scale

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.