Home / 125,493,584.81-172,998,625.32-87,699,408.89

Finding the Fourth Proportional to 125,493,584.81, 172,998,625.32 and 87,699,408.89

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Solution

The fourth proportional to 125,493,584.81, 172,998,625.32 and 87,699,408.89 is: 120,897,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,493,584.81 : 172,998,625.32 = 87,699,408.89 : x
  2. Step 2: Convert to fraction form
    125,493,584.81/172,998,625.32 = 87,699,408.89/x
  3. Step 3: Cross multiply
    125,493,584.81x = 172,998,625.32 × 87,699,408.89
  4. Step 4: Simplify right side
    125,493,584.81x = 15,171,877,178,043,098
  5. Step 5: Solve for x
    x = 15,171,877,178,043,098/125,493,584.81
  6. Step 6: Final answer
    x = 120,897,631.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.