Home / 31,993,760.40-47,990,640.60-20,514,634.80

Finding the Fourth Proportional to 31,993,760.40, 47,990,640.60 and 20,514,634.80

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Solution

The fourth proportional to 31,993,760.40, 47,990,640.60 and 20,514,634.80 is: 30,771,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,993,760.40 : 47,990,640.60 = 20,514,634.80 : x
  2. Step 2: Convert to fraction form
    31,993,760.40/47,990,640.60 = 20,514,634.80/x
  3. Step 3: Cross multiply
    31,993,760.40x = 47,990,640.60 × 20,514,634.80
  4. Step 4: Simplify right side
    31,993,760.40x = 984,510,465,727,053
  5. Step 5: Solve for x
    x = 984,510,465,727,053/31,993,760.40
  6. Step 6: Final answer
    x = 30,771,952.20

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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.