Home / 2,166,144.33-2,989,389.40-1,199,380.98

Finding the Fourth Proportional to 2,166,144.33, 2,989,389.40 and 1,199,380.98

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Solution

The fourth proportional to 2,166,144.33, 2,989,389.40 and 1,199,380.98 is: 1,655,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,144.33 : 2,989,389.40 = 1,199,380.98 : x
  2. Step 2: Convert to fraction form
    2,166,144.33/2,989,389.40 = 1,199,380.98/x
  3. Step 3: Cross multiply
    2,166,144.33x = 2,989,389.40 × 1,199,380.98
  4. Step 4: Simplify right side
    2,166,144.33x = 3,585,416,788,173.61
  5. Step 5: Solve for x
    x = 3,585,416,788,173.61/2,166,144.33
  6. Step 6: Final answer
    x = 1,655,206.78

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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.