Home / 31,993,742.40-47,990,613.60-20,514,616.80

Finding the Fourth Proportional to 31,993,742.40, 47,990,613.60 and 20,514,616.80

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Solution

The fourth proportional to 31,993,742.40, 47,990,613.60 and 20,514,616.80 is: 30,771,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,993,742.40 : 47,990,613.60 = 20,514,616.80 : x
  2. Step 2: Convert to fraction form
    31,993,742.40/47,990,613.60 = 20,514,616.80/x
  3. Step 3: Cross multiply
    31,993,742.40x = 47,990,613.60 × 20,514,616.80
  4. Step 4: Simplify right side
    31,993,742.40x = 984,509,048,000,868.50
  5. Step 5: Solve for x
    x = 984,509,048,000,868.50/31,993,742.40
  6. Step 6: Final answer
    x = 30,771,925.20

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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.