Home / 172,368,662.35-258,552,993.53-138,356,438.35

Finding the Fourth Proportional to 172,368,662.35, 258,552,993.53 and 138,356,438.35

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Solution

The fourth proportional to 172,368,662.35, 258,552,993.53 and 138,356,438.35 is: 207,534,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,368,662.35 : 258,552,993.53 = 138,356,438.35 : x
  2. Step 2: Convert to fraction form
    172,368,662.35/258,552,993.53 = 138,356,438.35/x
  3. Step 3: Cross multiply
    172,368,662.35x = 258,552,993.53 × 138,356,438.35
  4. Step 4: Simplify right side
    172,368,662.35x = 35,772,471,309,541,392
  5. Step 5: Solve for x
    x = 35,772,471,309,541,392/172,368,662.35
  6. Step 6: Final answer
    x = 207,534,657.53

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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.