Home / 15,490,693.82-21,377,039.42-8,521,221.66

Finding the Fourth Proportional to 15,490,693.82, 21,377,039.42 and 8,521,221.66

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Solution

The fourth proportional to 15,490,693.82, 21,377,039.42 and 8,521,221.66 is: 11,759,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490,693.82 : 21,377,039.42 = 8,521,221.66 : x
  2. Step 2: Convert to fraction form
    15,490,693.82/21,377,039.42 = 8,521,221.66/x
  3. Step 3: Cross multiply
    15,490,693.82x = 21,377,039.42 × 8,521,221.66
  4. Step 4: Simplify right side
    15,490,693.82x = 182,158,491,332,377.84
  5. Step 5: Solve for x
    x = 182,158,491,332,377.84/15,490,693.82
  6. Step 6: Final answer
    x = 11,759,220.95

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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.