Home / 20,796,413.40-31,152,629.70-11,810,467.80

Finding the Fourth Proportional to 20,796,413.40, 31,152,629.70 and 11,810,467.80

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Solution

The fourth proportional to 20,796,413.40, 31,152,629.70 and 11,810,467.80 is: 17,691,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,413.40 : 31,152,629.70 = 11,810,467.80 : x
  2. Step 2: Convert to fraction form
    20,796,413.40/31,152,629.70 = 11,810,467.80/x
  3. Step 3: Cross multiply
    20,796,413.40x = 31,152,629.70 × 11,810,467.80
  4. Step 4: Simplify right side
    20,796,413.40x = 367,927,129,957,173.69
  5. Step 5: Solve for x
    x = 367,927,129,957,173.69/20,796,413.40
  6. Step 6: Final answer
    x = 17,691,854.98

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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.