Home / 20,783,999.51-31,177,661.38-7,131,652.01

Finding the Fourth Proportional to 20,783,999.51, 31,177,661.38 and 7,131,652.01

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Solution

The fourth proportional to 20,783,999.51, 31,177,661.38 and 7,131,652.01 is: 10,698,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,999.51 : 31,177,661.38 = 7,131,652.01 : x
  2. Step 2: Convert to fraction form
    20,783,999.51/31,177,661.38 = 7,131,652.01/x
  3. Step 3: Cross multiply
    20,783,999.51x = 31,177,661.38 × 7,131,652.01
  4. Step 4: Simplify right side
    20,783,999.51x = 222,348,231,274,058.94
  5. Step 5: Solve for x
    x = 222,348,231,274,058.94/20,783,999.51
  6. Step 6: Final answer
    x = 10,698,048.33

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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.