Home / 72,288,647.37-99,840,469.05-48,726,546.30

Finding the Fourth Proportional to 72,288,647.37, 99,840,469.05 and 48,726,546.30

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Solution

The fourth proportional to 72,288,647.37, 99,840,469.05 and 48,726,546.30 is: 67,297,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,288,647.37 : 99,840,469.05 = 48,726,546.30 : x
  2. Step 2: Convert to fraction form
    72,288,647.37/99,840,469.05 = 48,726,546.30/x
  3. Step 3: Cross multiply
    72,288,647.37x = 99,840,469.05 × 48,726,546.30
  4. Step 4: Simplify right side
    72,288,647.37x = 4,864,881,237,778,542
  5. Step 5: Solve for x
    x = 4,864,881,237,778,542/72,288,647.37
  6. Step 6: Final answer
    x = 67,297,997.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.