Home / 20,749,937.20-31,129,571.40-6,373,668.40

Finding the Fourth Proportional to 20,749,937.20, 31,129,571.40 and 6,373,668.40

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Solution

The fourth proportional to 20,749,937.20, 31,129,571.40 and 6,373,668.40 is: 9,561,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749,937.20 : 31,129,571.40 = 6,373,668.40 : x
  2. Step 2: Convert to fraction form
    20,749,937.20/31,129,571.40 = 6,373,668.40/x
  3. Step 3: Cross multiply
    20,749,937.20x = 31,129,571.40 × 6,373,668.40
  4. Step 4: Simplify right side
    20,749,937.20x = 198,409,565,537,723.75
  5. Step 5: Solve for x
    x = 198,409,565,537,723.75/20,749,937.20
  6. Step 6: Final answer
    x = 9,561,935.71

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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.