Home / 3,945,947.40-5,918,921.10-1,820,183.40

Finding the Fourth Proportional to 3,945,947.40, 5,918,921.10 and 1,820,183.40

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Solution

The fourth proportional to 3,945,947.40, 5,918,921.10 and 1,820,183.40 is: 2,730,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945,947.40 : 5,918,921.10 = 1,820,183.40 : x
  2. Step 2: Convert to fraction form
    3,945,947.40/5,918,921.10 = 1,820,183.40/x
  3. Step 3: Cross multiply
    3,945,947.40x = 5,918,921.10 × 1,820,183.40
  4. Step 4: Simplify right side
    3,945,947.40x = 10,773,521,932,129.74
  5. Step 5: Solve for x
    x = 10,773,521,932,129.74/3,945,947.40
  6. Step 6: Final answer
    x = 2,730,275.10

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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.