Home / 12,768,362.75-17,615,736.25-9,829,078.79

Finding the Fourth Proportional to 12,768,362.75, 17,615,736.25 and 9,829,078.79

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Solution

The fourth proportional to 12,768,362.75, 17,615,736.25 and 9,829,078.79 is: 13,560,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,362.75 : 17,615,736.25 = 9,829,078.79 : x
  2. Step 2: Convert to fraction form
    12,768,362.75/17,615,736.25 = 9,829,078.79/x
  3. Step 3: Cross multiply
    12,768,362.75x = 17,615,736.25 × 9,829,078.79
  4. Step 4: Simplify right side
    12,768,362.75x = 173,146,459,564,575.78
  5. Step 5: Solve for x
    x = 173,146,459,564,575.78/12,768,362.75
  6. Step 6: Final answer
    x = 13,560,584.31

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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.