Home / 7,122,238.40-9,827,394.86-3,982,558.73

Finding the Fourth Proportional to 7,122,238.40, 9,827,394.86 and 3,982,558.73

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Solution

The fourth proportional to 7,122,238.40, 9,827,394.86 and 3,982,558.73 is: 5,495,207.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122,238.40 : 9,827,394.86 = 3,982,558.73 : x
  2. Step 2: Convert to fraction form
    7,122,238.40/9,827,394.86 = 3,982,558.73/x
  3. Step 3: Cross multiply
    7,122,238.40x = 9,827,394.86 × 3,982,558.73
  4. Step 4: Simplify right side
    7,122,238.40x = 39,138,177,153,669.55
  5. Step 5: Solve for x
    x = 39,138,177,153,669.55/7,122,238.40
  6. Step 6: Final answer
    x = 5,495,207.40

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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.