Home / 1,990,890.14-2,981,685.05-1,830,129.22

Finding the Fourth Proportional to 1,990,890.14, 2,981,685.05 and 1,830,129.22

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Solution

The fourth proportional to 1,990,890.14, 2,981,685.05 and 1,830,129.22 is: 2,740,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,890.14 : 2,981,685.05 = 1,830,129.22 : x
  2. Step 2: Convert to fraction form
    1,990,890.14/2,981,685.05 = 1,830,129.22/x
  3. Step 3: Cross multiply
    1,990,890.14x = 2,981,685.05 × 1,830,129.22
  4. Step 4: Simplify right side
    1,990,890.14x = 5,456,868,910,783.09
  5. Step 5: Solve for x
    x = 5,456,868,910,783.09/1,990,890.14
  6. Step 6: Final answer
    x = 2,740,919.15

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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.