Home / 172,368,660.60-258,552,990.90-138,356,436.60

Finding the Fourth Proportional to 172,368,660.60, 258,552,990.90 and 138,356,436.60

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Solution

The fourth proportional to 172,368,660.60, 258,552,990.90 and 138,356,436.60 is: 207,534,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,368,660.60 : 258,552,990.90 = 138,356,436.60 : x
  2. Step 2: Convert to fraction form
    172,368,660.60/258,552,990.90 = 138,356,436.60/x
  3. Step 3: Cross multiply
    172,368,660.60x = 258,552,990.90 × 138,356,436.60
  4. Step 4: Simplify right side
    172,368,660.60x = 35,772,470,493,196,228
  5. Step 5: Solve for x
    x = 35,772,470,493,196,228/172,368,660.60
  6. Step 6: Final answer
    x = 207,534,654.90

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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.