Home / 2,990,199.06-4,131,872.44-2,129,264.64

Finding the Fourth Proportional to 2,990,199.06, 4,131,872.44 and 2,129,264.64

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Solution

The fourth proportional to 2,990,199.06, 4,131,872.44 and 2,129,264.64 is: 2,942,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,199.06 : 4,131,872.44 = 2,129,264.64 : x
  2. Step 2: Convert to fraction form
    2,990,199.06/4,131,872.44 = 2,129,264.64/x
  3. Step 3: Cross multiply
    2,990,199.06x = 4,131,872.44 × 2,129,264.64
  4. Step 4: Simplify right side
    2,990,199.06x = 8,797,849,878,159.36
  5. Step 5: Solve for x
    x = 8,797,849,878,159.36/2,990,199.06
  6. Step 6: Final answer
    x = 2,942,228.83

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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.