Home / 8,278,869.51-12,420,370.85-2,887,597.40

Finding the Fourth Proportional to 8,278,869.51, 12,420,370.85 and 2,887,597.40

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Solution

The fourth proportional to 8,278,869.51, 12,420,370.85 and 2,887,597.40 is: 4,332,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,869.51 : 12,420,370.85 = 2,887,597.40 : x
  2. Step 2: Convert to fraction form
    8,278,869.51/12,420,370.85 = 2,887,597.40/x
  3. Step 3: Cross multiply
    8,278,869.51x = 12,420,370.85 × 2,887,597.40
  4. Step 4: Simplify right side
    8,278,869.51x = 35,865,030,496,955.95
  5. Step 5: Solve for x
    x = 35,865,030,496,955.95/8,278,869.51
  6. Step 6: Final answer
    x = 4,332,116.90

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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.