Home / 13,150,413.12-18,144,559.10-7,851,076.68

Finding the Fourth Proportional to 13,150,413.12, 18,144,559.10 and 7,851,076.68

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Solution

The fourth proportional to 13,150,413.12, 18,144,559.10 and 7,851,076.68 is: 10,832,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150,413.12 : 18,144,559.10 = 7,851,076.68 : x
  2. Step 2: Convert to fraction form
    13,150,413.12/18,144,559.10 = 7,851,076.68/x
  3. Step 3: Cross multiply
    13,150,413.12x = 18,144,559.10 × 7,851,076.68
  4. Step 4: Simplify right side
    13,150,413.12x = 142,454,324,818,891.78
  5. Step 5: Solve for x
    x = 142,454,324,818,891.78/13,150,413.12
  6. Step 6: Final answer
    x = 10,832,688.18

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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.