Home / 20,310,961.32-30,466,638.90-5,164,892.82

Finding the Fourth Proportional to 20,310,961.32, 30,466,638.90 and 5,164,892.82

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Solution

The fourth proportional to 20,310,961.32, 30,466,638.90 and 5,164,892.82 is: 7,747,389.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,961.32 : 30,466,638.90 = 5,164,892.82 : x
  2. Step 2: Convert to fraction form
    20,310,961.32/30,466,638.90 = 5,164,892.82/x
  3. Step 3: Cross multiply
    20,310,961.32x = 30,466,638.90 × 5,164,892.82
  4. Step 4: Simplify right side
    20,310,961.32x = 157,356,924,504,142.69
  5. Step 5: Solve for x
    x = 157,356,924,504,142.69/20,310,961.32
  6. Step 6: Final answer
    x = 7,747,389.30

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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.