Home / 5,320,658.40-7,979,432.40-1,908,549.60

Finding the Fourth Proportional to 5,320,658.40, 7,979,432.40 and 1,908,549.60

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Solution

The fourth proportional to 5,320,658.40, 7,979,432.40 and 1,908,549.60 is: 2,862,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,658.40 : 7,979,432.40 = 1,908,549.60 : x
  2. Step 2: Convert to fraction form
    5,320,658.40/7,979,432.40 = 1,908,549.60/x
  3. Step 3: Cross multiply
    5,320,658.40x = 7,979,432.40 × 1,908,549.60
  4. Step 4: Simplify right side
    5,320,658.40x = 15,229,142,515,247.04
  5. Step 5: Solve for x
    x = 15,229,142,515,247.04/5,320,658.40
  6. Step 6: Final answer
    x = 2,862,266.54

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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.