Home / 31,084,521.44-42,879,418.87-21,805,906.03

Finding the Fourth Proportional to 31,084,521.44, 42,879,418.87 and 21,805,906.03

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Solution

The fourth proportional to 31,084,521.44, 42,879,418.87 and 21,805,906.03 is: 30,080,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,084,521.44 : 42,879,418.87 = 21,805,906.03 : x
  2. Step 2: Convert to fraction form
    31,084,521.44/42,879,418.87 = 21,805,906.03/x
  3. Step 3: Cross multiply
    31,084,521.44x = 42,879,418.87 × 21,805,906.03
  4. Step 4: Simplify right side
    31,084,521.44x = 935,024,578,500,228.75
  5. Step 5: Solve for x
    x = 935,024,578,500,228.75/31,084,521.44
  6. Step 6: Final answer
    x = 30,080,069.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.