Home / 72,957,660.19-100,682,831.96-39,920,796.73

Finding the Fourth Proportional to 72,957,660.19, 100,682,831.96 and 39,920,796.73

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Solution

The fourth proportional to 72,957,660.19, 100,682,831.96 and 39,920,796.73 is: 55,091,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,957,660.19 : 100,682,831.96 = 39,920,796.73 : x
  2. Step 2: Convert to fraction form
    72,957,660.19/100,682,831.96 = 39,920,796.73/x
  3. Step 3: Cross multiply
    72,957,660.19x = 100,682,831.96 × 39,920,796.73
  4. Step 4: Simplify right side
    72,957,660.19x = 4,019,338,868,875,907
  5. Step 5: Solve for x
    x = 4,019,338,868,875,907/72,957,660.19
  6. Step 6: Final answer
    x = 55,091,389.42

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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.