Home / 603,612,067.80-905,418,101.70-215,872,714.20

Finding the Fourth Proportional to 603,612,067.80, 905,418,101.70 and 215,872,714.20

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Solution

The fourth proportional to 603,612,067.80, 905,418,101.70 and 215,872,714.20 is: 323,809,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,612,067.80 : 905,418,101.70 = 215,872,714.20 : x
  2. Step 2: Convert to fraction form
    603,612,067.80/905,418,101.70 = 215,872,714.20/x
  3. Step 3: Cross multiply
    603,612,067.80x = 905,418,101.70 × 215,872,714.20
  4. Step 4: Simplify right side
    603,612,067.80x = 195,455,063,099,790,624
  5. Step 5: Solve for x
    x = 195,455,063,099,790,624/603,612,067.80
  6. Step 6: Final answer
    x = 323,809,071.30

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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.