Home / 13,146,413.10-18,142,988.86-7,265,920.92

Finding the Fourth Proportional to 13,146,413.10, 18,142,988.86 and 7,265,920.92

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Solution

The fourth proportional to 13,146,413.10, 18,142,988.86 and 7,265,920.92 is: 10,027,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,413.10 : 18,142,988.86 = 7,265,920.92 : x
  2. Step 2: Convert to fraction form
    13,146,413.10/18,142,988.86 = 7,265,920.92/x
  3. Step 3: Cross multiply
    13,146,413.10x = 18,142,988.86 × 7,265,920.92
  4. Step 4: Simplify right side
    13,146,413.10x = 131,825,522,309,200.95
  5. Step 5: Solve for x
    x = 131,825,522,309,200.95/13,146,413.10
  6. Step 6: Final answer
    x = 10,027,489.73

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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.