Home / 2,990,821.80-4,486,232.70-2,790,055.20

Finding the Fourth Proportional to 2,990,821.80, 4,486,232.70 and 2,790,055.20

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Solution

The fourth proportional to 2,990,821.80, 4,486,232.70 and 2,790,055.20 is: 4,185,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,821.80 : 4,486,232.70 = 2,790,055.20 : x
  2. Step 2: Convert to fraction form
    2,990,821.80/4,486,232.70 = 2,790,055.20/x
  3. Step 3: Cross multiply
    2,990,821.80x = 4,486,232.70 × 2,790,055.20
  4. Step 4: Simplify right side
    2,990,821.80x = 12,516,836,873,045.04
  5. Step 5: Solve for x
    x = 12,516,836,873,045.04/2,990,821.80
  6. Step 6: Final answer
    x = 4,185,082.80

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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.