Home / 79,028,091.30-118,544,217.06-21,521,538.66

Finding the Fourth Proportional to 79,028,091.30, 118,544,217.06 and 21,521,538.66

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Solution

The fourth proportional to 79,028,091.30, 118,544,217.06 and 21,521,538.66 is: 32,282,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,028,091.30 : 118,544,217.06 = 21,521,538.66 : x
  2. Step 2: Convert to fraction form
    79,028,091.30/118,544,217.06 = 21,521,538.66/x
  3. Step 3: Cross multiply
    79,028,091.30x = 118,544,217.06 × 21,521,538.66
  4. Step 4: Simplify right side
    79,028,091.30x = 2,551,253,950,376,221.50
  5. Step 5: Solve for x
    x = 2,551,253,950,376,221.50/79,028,091.30
  6. Step 6: Final answer
    x = 32,282,874.46

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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.