Home / 39,318,120.85-54,259,258.65-21,915,569.53

Finding the Fourth Proportional to 39,318,120.85, 54,259,258.65 and 21,915,569.53

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Solution

The fourth proportional to 39,318,120.85, 54,259,258.65 and 21,915,569.53 is: 30,243,626.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318,120.85 : 54,259,258.65 = 21,915,569.53 : x
  2. Step 2: Convert to fraction form
    39,318,120.85/54,259,258.65 = 21,915,569.53/x
  3. Step 3: Cross multiply
    39,318,120.85x = 54,259,258.65 × 21,915,569.53
  4. Step 4: Simplify right side
    39,318,120.85x = 1,189,122,555,590,329
  5. Step 5: Solve for x
    x = 1,189,122,555,590,329/39,318,120.85
  6. Step 6: Final answer
    x = 30,243,626.35

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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.