Home / 172,368,664.60-258,552,996.90-138,356,440.60

Finding the Fourth Proportional to 172,368,664.60, 258,552,996.90 and 138,356,440.60

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Solution

The fourth proportional to 172,368,664.60, 258,552,996.90 and 138,356,440.60 is: 207,534,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,368,664.60 : 258,552,996.90 = 138,356,440.60 : x
  2. Step 2: Convert to fraction form
    172,368,664.60/258,552,996.90 = 138,356,440.60/x
  3. Step 3: Cross multiply
    172,368,664.60x = 258,552,996.90 × 138,356,440.60
  4. Step 4: Simplify right side
    172,368,664.60x = 35,772,472,357,546,832
  5. Step 5: Solve for x
    x = 35,772,472,357,546,832/172,368,664.60
  6. Step 6: Final answer
    x = 207,534,660.90

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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.