Home / 681,294,770.35-1,021,942,155.52-215,003,453.32

Finding the Fourth Proportional to 681,294,770.35, 1,021,942,155.52 and 215,003,453.32

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Solution

The fourth proportional to 681,294,770.35, 1,021,942,155.52 and 215,003,453.32 is: 322,505,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,294,770.35 : 1,021,942,155.52 = 215,003,453.32 : x
  2. Step 2: Convert to fraction form
    681,294,770.35/1,021,942,155.52 = 215,003,453.32/x
  3. Step 3: Cross multiply
    681,294,770.35x = 1,021,942,155.52 × 215,003,453.32
  4. Step 4: Simplify right side
    681,294,770.35x = 219,721,092,531,641,408
  5. Step 5: Solve for x
    x = 219,721,092,531,641,408/681,294,770.35
  6. Step 6: Final answer
    x = 322,505,179.98

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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.