Home / 6,464,078.55-8,920,455.35-3,563,405.78

Finding the Fourth Proportional to 6,464,078.55, 8,920,455.35 and 3,563,405.78

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Solution

The fourth proportional to 6,464,078.55, 8,920,455.35 and 3,563,405.78 is: 4,917,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464,078.55 : 8,920,455.35 = 3,563,405.78 : x
  2. Step 2: Convert to fraction form
    6,464,078.55/8,920,455.35 = 3,563,405.78/x
  3. Step 3: Cross multiply
    6,464,078.55x = 8,920,455.35 × 3,563,405.78
  4. Step 4: Simplify right side
    6,464,078.55x = 31,787,202,092,002.62
  5. Step 5: Solve for x
    x = 31,787,202,092,002.62/6,464,078.55
  6. Step 6: Final answer
    x = 4,917,514.82

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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.