Home / 6,419,308.03-8,853,479.73-5,643,279.61

Finding the Fourth Proportional to 6,419,308.03, 8,853,479.73 and 5,643,279.61

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Solution

The fourth proportional to 6,419,308.03, 8,853,479.73 and 5,643,279.61 is: 7,783,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419,308.03 : 8,853,479.73 = 5,643,279.61 : x
  2. Step 2: Convert to fraction form
    6,419,308.03/8,853,479.73 = 5,643,279.61/x
  3. Step 3: Cross multiply
    6,419,308.03x = 8,853,479.73 × 5,643,279.61
  4. Step 4: Simplify right side
    6,419,308.03x = 49,962,661,637,857.31
  5. Step 5: Solve for x
    x = 49,962,661,637,857.31/6,419,308.03
  6. Step 6: Final answer
    x = 7,783,184.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.