Home / 21,208,816.38-31,783,571.01-11,472,413.70

Finding the Fourth Proportional to 21,208,816.38, 31,783,571.01 and 11,472,413.70

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Solution

The fourth proportional to 21,208,816.38, 31,783,571.01 and 11,472,413.70 is: 17,192,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208,816.38 : 31,783,571.01 = 11,472,413.70 : x
  2. Step 2: Convert to fraction form
    21,208,816.38/31,783,571.01 = 11,472,413.70/x
  3. Step 3: Cross multiply
    21,208,816.38x = 31,783,571.01 × 11,472,413.70
  4. Step 4: Simplify right side
    21,208,816.38x = 364,634,275,490,046.81
  5. Step 5: Solve for x
    x = 364,634,275,490,046.81/21,208,816.38
  6. Step 6: Final answer
    x = 17,192,580.15

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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.