Home / 2,920,199.40-4,380,299.10-1,912,429.80

Finding the Fourth Proportional to 2,920,199.40, 4,380,299.10 and 1,912,429.80

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Solution

The fourth proportional to 2,920,199.40, 4,380,299.10 and 1,912,429.80 is: 2,868,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920,199.40 : 4,380,299.10 = 1,912,429.80 : x
  2. Step 2: Convert to fraction form
    2,920,199.40/4,380,299.10 = 1,912,429.80/x
  3. Step 3: Cross multiply
    2,920,199.40x = 4,380,299.10 × 1,912,429.80
  4. Step 4: Simplify right side
    2,920,199.40x = 8,377,014,531,753.18
  5. Step 5: Solve for x
    x = 8,377,014,531,753.18/2,920,199.40
  6. Step 6: Final answer
    x = 2,868,644.70

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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.