Home / 80,596,949.60-120,895,424.40-20,012,675.60

Finding the Fourth Proportional to 80,596,949.60, 120,895,424.40 and 20,012,675.60

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Solution

The fourth proportional to 80,596,949.60, 120,895,424.40 and 20,012,675.60 is: 30,019,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,596,949.60 : 120,895,424.40 = 20,012,675.60 : x
  2. Step 2: Convert to fraction form
    80,596,949.60/120,895,424.40 = 20,012,675.60/x
  3. Step 3: Cross multiply
    80,596,949.60x = 120,895,424.40 × 20,012,675.60
  4. Step 4: Simplify right side
    80,596,949.60x = 2,419,440,910,041,525
  5. Step 5: Solve for x
    x = 2,419,440,910,041,525/80,596,949.60
  6. Step 6: Final answer
    x = 30,019,013.40

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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.