Home / 638,682,599.48-958,017,512.52-201,983,358.04

Finding the Fourth Proportional to 638,682,599.48, 958,017,512.52 and 201,983,358.04

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Solution

The fourth proportional to 638,682,599.48, 958,017,512.52 and 201,983,358.04 is: 302,973,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,682,599.48 : 958,017,512.52 = 201,983,358.04 : x
  2. Step 2: Convert to fraction form
    638,682,599.48/958,017,512.52 = 201,983,358.04/x
  3. Step 3: Cross multiply
    638,682,599.48x = 958,017,512.52 × 201,983,358.04
  4. Step 4: Simplify right side
    638,682,599.48x = 193,503,594,239,917,344
  5. Step 5: Solve for x
    x = 193,503,594,239,917,344/638,682,599.48
  6. Step 6: Final answer
    x = 302,973,017.27

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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.