Home / 109,458,220.86-151,216,413.84-71,870,561.55

Finding the Fourth Proportional to 109,458,220.86, 151,216,413.84 and 71,870,561.55

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Solution

The fourth proportional to 109,458,220.86, 151,216,413.84 and 71,870,561.55 is: 99,289,103.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,458,220.86 : 151,216,413.84 = 71,870,561.55 : x
  2. Step 2: Convert to fraction form
    109,458,220.86/151,216,413.84 = 71,870,561.55/x
  3. Step 3: Cross multiply
    109,458,220.86x = 151,216,413.84 × 71,870,561.55
  4. Step 4: Simplify right side
    109,458,220.86x = 10,868,008,578,257,992
  5. Step 5: Solve for x
    x = 10,868,008,578,257,992/109,458,220.86
  6. Step 6: Final answer
    x = 99,289,103.12

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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.