Home / 144,220,081.97-199,032,122.30-81,494,581.88

Finding the Fourth Proportional to 144,220,081.97, 199,032,122.30 and 81,494,581.88

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Solution

The fourth proportional to 144,220,081.97, 199,032,122.30 and 81,494,581.88 is: 112,467,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,220,081.97 : 199,032,122.30 = 81,494,581.88 : x
  2. Step 2: Convert to fraction form
    144,220,081.97/199,032,122.30 = 81,494,581.88/x
  3. Step 3: Cross multiply
    144,220,081.97x = 199,032,122.30 × 81,494,581.88
  4. Step 4: Simplify right side
    144,220,081.97x = 16,220,039,586,124,890
  5. Step 5: Solve for x
    x = 16,220,039,586,124,890/144,220,081.97
  6. Step 6: Final answer
    x = 112,467,274.77

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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.