Home / 21,002,538.40-31,508,265.84-6,629,760.16

Finding the Fourth Proportional to 21,002,538.40, 31,508,265.84 and 6,629,760.16

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Solution

The fourth proportional to 21,002,538.40, 31,508,265.84 and 6,629,760.16 is: 9,946,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,538.40 : 31,508,265.84 = 6,629,760.16 : x
  2. Step 2: Convert to fraction form
    21,002,538.40/31,508,265.84 = 6,629,760.16/x
  3. Step 3: Cross multiply
    21,002,538.40x = 31,508,265.84 × 6,629,760.16
  4. Step 4: Simplify right side
    21,002,538.40x = 208,892,245,576,720.94
  5. Step 5: Solve for x
    x = 208,892,245,576,720.94/21,002,538.40
  6. Step 6: Final answer
    x = 9,946,047.55

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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.