Home / 5,428,542.80-8,137,630.20-2,015,915.60

Finding the Fourth Proportional to 5,428,542.80, 8,137,630.20 and 2,015,915.60

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Solution

The fourth proportional to 5,428,542.80, 8,137,630.20 and 2,015,915.60 is: 3,021,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,542.80 : 8,137,630.20 = 2,015,915.60 : x
  2. Step 2: Convert to fraction form
    5,428,542.80/8,137,630.20 = 2,015,915.60/x
  3. Step 3: Cross multiply
    5,428,542.80x = 8,137,630.20 × 2,015,915.60
  4. Step 4: Simplify right side
    5,428,542.80x = 16,404,775,667,211.12
  5. Step 5: Solve for x
    x = 16,404,775,667,211.12/5,428,542.80
  6. Step 6: Final answer
    x = 3,021,948.30

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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.