Home / 125,629,072-188,443,651.68-39,374,171.20

Finding the Fourth Proportional to 125,629,072, 188,443,651.68 and 39,374,171.20

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Solution

The fourth proportional to 125,629,072, 188,443,651.68 and 39,374,171.20 is: 59,061,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,629,072 : 188,443,651.68 = 39,374,171.20 : x
  2. Step 2: Convert to fraction form
    125,629,072/188,443,651.68 = 39,374,171.20/x
  3. Step 3: Cross multiply
    125,629,072x = 188,443,651.68 × 39,374,171.20
  4. Step 4: Simplify right side
    125,629,072x = 7,419,812,602,801,488
  5. Step 5: Solve for x
    x = 7,419,812,602,801,488/125,629,072
  6. Step 6: Final answer
    x = 59,061,270.49

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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.