Home / 54,009,635.20-81,005,720.64-19,947,022.72

Finding the Fourth Proportional to 54,009,635.20, 81,005,720.64 and 19,947,022.72

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Solution

The fourth proportional to 54,009,635.20, 81,005,720.64 and 19,947,022.72 is: 29,917,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,009,635.20 : 81,005,720.64 = 19,947,022.72 : x
  2. Step 2: Convert to fraction form
    54,009,635.20/81,005,720.64 = 19,947,022.72/x
  3. Step 3: Cross multiply
    54,009,635.20x = 81,005,720.64 × 19,947,022.72
  4. Step 4: Simplify right side
    54,009,635.20x = 1,615,822,950,056,052.75
  5. Step 5: Solve for x
    x = 1,615,822,950,056,052.75/54,009,635.20
  6. Step 6: Final answer
    x = 29,917,309.09

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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.