Home / 55,107,026.20-82,692,032.10-21,052,811.80

Finding the Fourth Proportional to 55,107,026.20, 82,692,032.10 and 21,052,811.80

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Solution

The fourth proportional to 55,107,026.20, 82,692,032.10 and 21,052,811.80 is: 31,591,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,107,026.20 : 82,692,032.10 = 21,052,811.80 : x
  2. Step 2: Convert to fraction form
    55,107,026.20/82,692,032.10 = 21,052,811.80/x
  3. Step 3: Cross multiply
    55,107,026.20x = 82,692,032.10 × 21,052,811.80
  4. Step 4: Simplify right side
    55,107,026.20x = 1,740,899,789,160,858.75
  5. Step 5: Solve for x
    x = 1,740,899,789,160,858.75/55,107,026.20
  6. Step 6: Final answer
    x = 31,591,249.05

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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.