Home / 3,921,247.56-5,411,308.50-2,178,909.48

Finding the Fourth Proportional to 3,921,247.56, 5,411,308.50 and 2,178,909.48

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Solution

The fourth proportional to 3,921,247.56, 5,411,308.50 and 2,178,909.48 is: 3,006,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,247.56 : 5,411,308.50 = 2,178,909.48 : x
  2. Step 2: Convert to fraction form
    3,921,247.56/5,411,308.50 = 2,178,909.48/x
  3. Step 3: Cross multiply
    3,921,247.56x = 5,411,308.50 × 2,178,909.48
  4. Step 4: Simplify right side
    3,921,247.56x = 11,790,751,389,854.58
  5. Step 5: Solve for x
    x = 11,790,751,389,854.58/3,921,247.56
  6. Step 6: Final answer
    x = 3,006,887.78

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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.