Home / 20,663,760.51-30,994,385.97-7,707,413.61

Finding the Fourth Proportional to 20,663,760.51, 30,994,385.97 and 7,707,413.61

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Solution

The fourth proportional to 20,663,760.51, 30,994,385.97 and 7,707,413.61 is: 11,560,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663,760.51 : 30,994,385.97 = 7,707,413.61 : x
  2. Step 2: Convert to fraction form
    20,663,760.51/30,994,385.97 = 7,707,413.61/x
  3. Step 3: Cross multiply
    20,663,760.51x = 30,994,385.97 × 7,707,413.61
  4. Step 4: Simplify right side
    20,663,760.51x = 238,886,552,258,771.06
  5. Step 5: Solve for x
    x = 238,886,552,258,771.06/20,663,760.51
  6. Step 6: Final answer
    x = 11,560,652.39

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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.