Home / 172,603,007.15-258,902,739.20-99,773,446.77

Finding the Fourth Proportional to 172,603,007.15, 258,902,739.20 and 99,773,446.77

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Solution

The fourth proportional to 172,603,007.15, 258,902,739.20 and 99,773,446.77 is: 149,659,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,603,007.15 : 258,902,739.20 = 99,773,446.77 : x
  2. Step 2: Convert to fraction form
    172,603,007.15/258,902,739.20 = 99,773,446.77/x
  3. Step 3: Cross multiply
    172,603,007.15x = 258,902,739.20 × 99,773,446.77
  4. Step 4: Simplify right side
    172,603,007.15x = 25,831,618,667,679,524
  5. Step 5: Solve for x
    x = 25,831,618,667,679,524/172,603,007.15
  6. Step 6: Final answer
    x = 149,659,146.12

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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.