Home / 2,666,921.11-3,680,360.39-1,443,226.31

Finding the Fourth Proportional to 2,666,921.11, 3,680,360.39 and 1,443,226.31

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Solution

The fourth proportional to 2,666,921.11, 3,680,360.39 and 1,443,226.31 is: 1,991,657.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,921.11 : 3,680,360.39 = 1,443,226.31 : x
  2. Step 2: Convert to fraction form
    2,666,921.11/3,680,360.39 = 1,443,226.31/x
  3. Step 3: Cross multiply
    2,666,921.11x = 3,680,360.39 × 1,443,226.31
  4. Step 4: Simplify right side
    2,666,921.11x = 5,311,592,945,129.86
  5. Step 5: Solve for x
    x = 5,311,592,945,129.86/2,666,921.11
  6. Step 6: Final answer
    x = 1,991,657.32

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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.