Home / 20,825,009.82-31,236,601.05-5,678,891.10

Finding the Fourth Proportional to 20,825,009.82, 31,236,601.05 and 5,678,891.10

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Solution

The fourth proportional to 20,825,009.82, 31,236,601.05 and 5,678,891.10 is: 8,518,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,825,009.82 : 31,236,601.05 = 5,678,891.10 : x
  2. Step 2: Convert to fraction form
    20,825,009.82/31,236,601.05 = 5,678,891.10/x
  3. Step 3: Cross multiply
    20,825,009.82x = 31,236,601.05 × 5,678,891.10
  4. Step 4: Simplify right side
    20,825,009.82x = 177,389,255,697,095.66
  5. Step 5: Solve for x
    x = 177,389,255,697,095.66/20,825,009.82
  6. Step 6: Final answer
    x = 8,518,087.49

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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.