Home / 39,318,118.35-54,259,255.20-21,915,567.05

Finding the Fourth Proportional to 39,318,118.35, 54,259,255.20 and 21,915,567.05

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Solution

The fourth proportional to 39,318,118.35, 54,259,255.20 and 21,915,567.05 is: 30,243,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318,118.35 : 54,259,255.20 = 21,915,567.05 : x
  2. Step 2: Convert to fraction form
    39,318,118.35/54,259,255.20 = 21,915,567.05/x
  3. Step 3: Cross multiply
    39,318,118.35x = 54,259,255.20 × 21,915,567.05
  4. Step 4: Simplify right side
    39,318,118.35x = 1,189,122,345,147,365
  5. Step 5: Solve for x
    x = 1,189,122,345,147,365/39,318,118.35
  6. Step 6: Final answer
    x = 30,243,622.92

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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.