Home / 159,153,479.12-219,612,317.64-100,394,083.28

Finding the Fourth Proportional to 159,153,479.12, 219,612,317.64 and 100,394,083.28

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Solution

The fourth proportional to 159,153,479.12, 219,612,317.64 and 100,394,083.28 is: 138,531,544.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,153,479.12 : 219,612,317.64 = 100,394,083.28 : x
  2. Step 2: Convert to fraction form
    159,153,479.12/219,612,317.64 = 100,394,083.28/x
  3. Step 3: Cross multiply
    159,153,479.12x = 219,612,317.64 × 100,394,083.28
  4. Step 4: Simplify right side
    159,153,479.12x = 22,047,777,306,463,972
  5. Step 5: Solve for x
    x = 22,047,777,306,463,972/159,153,479.12
  6. Step 6: Final answer
    x = 138,531,544.70

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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.