Home / 18,663,143.20-27,990,513.60-6,695,879.20

Finding the Fourth Proportional to 18,663,143.20, 27,990,513.60 and 6,695,879.20

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Solution

The fourth proportional to 18,663,143.20, 27,990,513.60 and 6,695,879.20 is: 10,042,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663,143.20 : 27,990,513.60 = 6,695,879.20 : x
  2. Step 2: Convert to fraction form
    18,663,143.20/27,990,513.60 = 6,695,879.20/x
  3. Step 3: Cross multiply
    18,663,143.20x = 27,990,513.60 × 6,695,879.20
  4. Step 4: Simplify right side
    18,663,143.20x = 187,421,097,811,557.12
  5. Step 5: Solve for x
    x = 187,421,097,811,557.12/18,663,143.20
  6. Step 6: Final answer
    x = 10,042,311.51

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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.