Home / 2,166,144.83-2,989,390.09-1,199,381.48

Finding the Fourth Proportional to 2,166,144.83, 2,989,390.09 and 1,199,381.48

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Solution

The fourth proportional to 2,166,144.83, 2,989,390.09 and 1,199,381.48 is: 1,655,207.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,144.83 : 2,989,390.09 = 1,199,381.48 : x
  2. Step 2: Convert to fraction form
    2,166,144.83/2,989,390.09 = 1,199,381.48/x
  3. Step 3: Cross multiply
    2,166,144.83x = 2,989,390.09 × 1,199,381.48
  4. Step 4: Simplify right side
    2,166,144.83x = 3,585,419,110,441.53
  5. Step 5: Solve for x
    x = 3,585,419,110,441.53/2,166,144.83
  6. Step 6: Final answer
    x = 1,655,207.47

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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.