Home / 2,166,521.82-2,989,763.66-1,199,631.30

Finding the Fourth Proportional to 2,166,521.82, 2,989,763.66 and 1,199,631.30

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Solution

The fourth proportional to 2,166,521.82, 2,989,763.66 and 1,199,631.30 is: 1,655,471.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,521.82 : 2,989,763.66 = 1,199,631.30 : x
  2. Step 2: Convert to fraction form
    2,166,521.82/2,989,763.66 = 1,199,631.30/x
  3. Step 3: Cross multiply
    2,166,521.82x = 2,989,763.66 × 1,199,631.30
  4. Step 4: Simplify right side
    2,166,521.82x = 3,586,614,066,138.56
  5. Step 5: Solve for x
    x = 3,586,614,066,138.56/2,166,521.82
  6. Step 6: Final answer
    x = 1,655,471.01

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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.