Home / 38,019,052.80-56,986,588.80-20,991,945.60

Finding the Fourth Proportional to 38,019,052.80, 56,986,588.80 and 20,991,945.60

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Solution

The fourth proportional to 38,019,052.80, 56,986,588.80 and 20,991,945.60 is: 31,464,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,019,052.80 : 56,986,588.80 = 20,991,945.60 : x
  2. Step 2: Convert to fraction form
    38,019,052.80/56,986,588.80 = 20,991,945.60/x
  3. Step 3: Cross multiply
    38,019,052.80x = 56,986,588.80 × 20,991,945.60
  4. Step 4: Simplify right side
    38,019,052.80x = 1,196,259,372,019,169.25
  5. Step 5: Solve for x
    x = 1,196,259,372,019,169.25/38,019,052.80
  6. Step 6: Final answer
    x = 31,464,733.70

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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.