Home / 2,121,118.92-3,181,994.96-983,996.07

Finding the Fourth Proportional to 2,121,118.92, 3,181,994.96 and 983,996.07

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Solution

The fourth proportional to 2,121,118.92, 3,181,994.96 and 983,996.07 is: 1,476,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,118.92 : 3,181,994.96 = 983,996.07 : x
  2. Step 2: Convert to fraction form
    2,121,118.92/3,181,994.96 = 983,996.07/x
  3. Step 3: Cross multiply
    2,121,118.92x = 3,181,994.96 × 983,996.07
  4. Step 4: Simplify right side
    2,121,118.92x = 3,131,070,532,369.13
  5. Step 5: Solve for x
    x = 3,131,070,532,369.13/2,121,118.92
  6. Step 6: Final answer
    x = 1,476,140.97

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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.