Home / 278,040,040.80-417,060,061.20-73,588,783.20

Finding the Fourth Proportional to 278,040,040.80, 417,060,061.20 and 73,588,783.20

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Solution

The fourth proportional to 278,040,040.80, 417,060,061.20 and 73,588,783.20 is: 110,383,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,040,040.80 : 417,060,061.20 = 73,588,783.20 : x
  2. Step 2: Convert to fraction form
    278,040,040.80/417,060,061.20 = 73,588,783.20/x
  3. Step 3: Cross multiply
    278,040,040.80x = 417,060,061.20 × 73,588,783.20
  4. Step 4: Simplify right side
    278,040,040.80x = 30,690,942,425,025,532
  5. Step 5: Solve for x
    x = 30,690,942,425,025,532/278,040,040.80
  6. Step 6: Final answer
    x = 110,383,174.80

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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.