Home / 18,851,235.63-28,274,735.85-5,206,321.78

Finding the Fourth Proportional to 18,851,235.63, 28,274,735.85 and 5,206,321.78

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Solution

The fourth proportional to 18,851,235.63, 28,274,735.85 and 5,206,321.78 is: 7,808,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851,235.63 : 28,274,735.85 = 5,206,321.78 : x
  2. Step 2: Convert to fraction form
    18,851,235.63/28,274,735.85 = 5,206,321.78/x
  3. Step 3: Cross multiply
    18,851,235.63x = 28,274,735.85 × 5,206,321.78
  4. Step 4: Simplify right side
    18,851,235.63x = 147,207,373,079,601.84
  5. Step 5: Solve for x
    x = 147,207,373,079,601.84/18,851,235.63
  6. Step 6: Final answer
    x = 7,808,897.83

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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.