Home / 15,374,076.71-21,216,478.05-9,179,664.66

Finding the Fourth Proportional to 15,374,076.71, 21,216,478.05 and 9,179,664.66

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Solution

The fourth proportional to 15,374,076.71, 21,216,478.05 and 9,179,664.66 is: 12,668,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374,076.71 : 21,216,478.05 = 9,179,664.66 : x
  2. Step 2: Convert to fraction form
    15,374,076.71/21,216,478.05 = 9,179,664.66/x
  3. Step 3: Cross multiply
    15,374,076.71x = 21,216,478.05 × 9,179,664.66
  4. Step 4: Simplify right side
    15,374,076.71x = 194,760,153,765,250.72
  5. Step 5: Solve for x
    x = 194,760,153,765,250.72/15,374,076.71
  6. Step 6: Final answer
    x = 12,668,087.81

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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.