Home / 80,339,645.75-120,520,817.33-25,739,459.37

Finding the Fourth Proportional to 80,339,645.75, 120,520,817.33 and 25,739,459.37

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Solution

The fourth proportional to 80,339,645.75, 120,520,817.33 and 25,739,459.37 is: 38,612,824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,339,645.75 : 120,520,817.33 = 25,739,459.37 : x
  2. Step 2: Convert to fraction form
    80,339,645.75/120,520,817.33 = 25,739,459.37/x
  3. Step 3: Cross multiply
    80,339,645.75x = 120,520,817.33 × 25,739,459.37
  4. Step 4: Simplify right side
    80,339,645.75x = 3,102,140,680,776,030
  5. Step 5: Solve for x
    x = 3,102,140,680,776,030/80,339,645.75
  6. Step 6: Final answer
    x = 38,612,824.99

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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.