Home / 54,643,660.20-81,965,490.30-20,572,649.64

Finding the Fourth Proportional to 54,643,660.20, 81,965,490.30 and 20,572,649.64

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Solution

The fourth proportional to 54,643,660.20, 81,965,490.30 and 20,572,649.64 is: 30,858,974.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,643,660.20 : 81,965,490.30 = 20,572,649.64 : x
  2. Step 2: Convert to fraction form
    54,643,660.20/81,965,490.30 = 20,572,649.64/x
  3. Step 3: Cross multiply
    54,643,660.20x = 81,965,490.30 × 20,572,649.64
  4. Step 4: Simplify right side
    54,643,660.20x = 1,686,247,314,512,718.50
  5. Step 5: Solve for x
    x = 1,686,247,314,512,718.50/54,643,660.20
  6. Step 6: Final answer
    x = 30,858,974.46

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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.