Home / 20,738,076.20-31,107,114.30-19,478,364.20

Finding the Fourth Proportional to 20,738,076.20, 31,107,114.30 and 19,478,364.20

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Solution

The fourth proportional to 20,738,076.20, 31,107,114.30 and 19,478,364.20 is: 29,217,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,076.20 : 31,107,114.30 = 19,478,364.20 : x
  2. Step 2: Convert to fraction form
    20,738,076.20/31,107,114.30 = 19,478,364.20/x
  3. Step 3: Cross multiply
    20,738,076.20x = 31,107,114.30 × 19,478,364.20
  4. Step 4: Simplify right side
    20,738,076.20x = 605,915,701,546,428
  5. Step 5: Solve for x
    x = 605,915,701,546,428/20,738,076.20
  6. Step 6: Final answer
    x = 29,217,546.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.