Home / 39,318,204.12-54,259,373.37-21,915,652.60

Finding the Fourth Proportional to 39,318,204.12, 54,259,373.37 and 21,915,652.60

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Solution

The fourth proportional to 39,318,204.12, 54,259,373.37 and 21,915,652.60 is: 30,243,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318,204.12 : 54,259,373.37 = 21,915,652.60 : x
  2. Step 2: Convert to fraction form
    39,318,204.12/54,259,373.37 = 21,915,652.60/x
  3. Step 3: Cross multiply
    39,318,204.12x = 54,259,373.37 × 21,915,652.60
  4. Step 4: Simplify right side
    39,318,204.12x = 1,189,129,577,070,611.25
  5. Step 5: Solve for x
    x = 1,189,129,577,070,611.25/39,318,204.12
  6. Step 6: Final answer
    x = 30,243,740.87

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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.