Home / 172,368,662.10-258,552,993.15-138,356,438.10

Finding the Fourth Proportional to 172,368,662.10, 258,552,993.15 and 138,356,438.10

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Solution

The fourth proportional to 172,368,662.10, 258,552,993.15 and 138,356,438.10 is: 207,534,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,368,662.10 : 258,552,993.15 = 138,356,438.10 : x
  2. Step 2: Convert to fraction form
    172,368,662.10/258,552,993.15 = 138,356,438.10/x
  3. Step 3: Cross multiply
    172,368,662.10x = 258,552,993.15 × 138,356,438.10
  4. Step 4: Simplify right side
    172,368,662.10x = 35,772,471,192,327,700
  5. Step 5: Solve for x
    x = 35,772,471,192,327,700/172,368,662.10
  6. Step 6: Final answer
    x = 207,534,657.15

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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.