Home / 309,729,076.38-427,516,385.13-202,453,982.10

Finding the Fourth Proportional to 309,729,076.38, 427,516,385.13 and 202,453,982.10

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Solution

The fourth proportional to 309,729,076.38, 427,516,385.13 and 202,453,982.10 is: 279,445,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,729,076.38 : 427,516,385.13 = 202,453,982.10 : x
  2. Step 2: Convert to fraction form
    309,729,076.38/427,516,385.13 = 202,453,982.10/x
  3. Step 3: Cross multiply
    309,729,076.38x = 427,516,385.13 × 202,453,982.10
  4. Step 4: Simplify right side
    309,729,076.38x = 86,552,394,582,565,728
  5. Step 5: Solve for x
    x = 86,552,394,582,565,728/309,729,076.38
  6. Step 6: Final answer
    x = 279,445,493.44

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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.