Home / 15,028,912.14-20,739,938.97-8,153,394.20

Finding the Fourth Proportional to 15,028,912.14, 20,739,938.97 and 8,153,394.20

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Solution

The fourth proportional to 15,028,912.14, 20,739,938.97 and 8,153,394.20 is: 11,251,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,912.14 : 20,739,938.97 = 8,153,394.20 : x
  2. Step 2: Convert to fraction form
    15,028,912.14/20,739,938.97 = 8,153,394.20/x
  3. Step 3: Cross multiply
    15,028,912.14x = 20,739,938.97 × 8,153,394.20
  4. Step 4: Simplify right side
    15,028,912.14x = 169,100,898,106,351.97
  5. Step 5: Solve for x
    x = 169,100,898,106,351.97/15,028,912.14
  6. Step 6: Final answer
    x = 11,251,705.81

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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.