Home / 2,990,223.08-4,131,905.66-2,129,288.66

Finding the Fourth Proportional to 2,990,223.08, 4,131,905.66 and 2,129,288.66

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Solution

The fourth proportional to 2,990,223.08, 4,131,905.66 and 2,129,288.66 is: 2,942,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,223.08 : 4,131,905.66 = 2,129,288.66 : x
  2. Step 2: Convert to fraction form
    2,990,223.08/4,131,905.66 = 2,129,288.66/x
  3. Step 3: Cross multiply
    2,990,223.08x = 4,131,905.66 × 2,129,288.66
  4. Step 4: Simplify right side
    2,990,223.08x = 8,798,019,855,381.37
  5. Step 5: Solve for x
    x = 8,798,019,855,381.37/2,990,223.08
  6. Step 6: Final answer
    x = 2,942,262.04

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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.