Home / 125,638,129.80-188,469,636.30-43,744,408.20

Finding the Fourth Proportional to 125,638,129.80, 188,469,636.30 and 43,744,408.20

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Solution

The fourth proportional to 125,638,129.80, 188,469,636.30 and 43,744,408.20 is: 65,620,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,638,129.80 : 188,469,636.30 = 43,744,408.20 : x
  2. Step 2: Convert to fraction form
    125,638,129.80/188,469,636.30 = 43,744,408.20/x
  3. Step 3: Cross multiply
    125,638,129.80x = 188,469,636.30 × 43,744,408.20
  4. Step 4: Simplify right side
    125,638,129.80x = 8,244,492,703,612,739
  5. Step 5: Solve for x
    x = 8,244,492,703,612,739/125,638,129.80
  6. Step 6: Final answer
    x = 65,620,944.19

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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.