Home / 125,493,586.31-172,998,627.38-87,699,410.39

Finding the Fourth Proportional to 125,493,586.31, 172,998,627.38 and 87,699,410.39

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Solution

The fourth proportional to 125,493,586.31, 172,998,627.38 and 87,699,410.39 is: 120,897,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,493,586.31 : 172,998,627.38 = 87,699,410.39 : x
  2. Step 2: Convert to fraction form
    125,493,586.31/172,998,627.38 = 87,699,410.39/x
  3. Step 3: Cross multiply
    125,493,586.31x = 172,998,627.38 × 87,699,410.39
  4. Step 4: Simplify right side
    125,493,586.31x = 15,171,877,619,505,310
  5. Step 5: Solve for x
    x = 15,171,877,619,505,310/125,493,586.31
  6. Step 6: Final answer
    x = 120,897,633.62

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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.