Home / 144,995,653.75-200,093,991.03-78,916,625.81

Finding the Fourth Proportional to 144,995,653.75, 200,093,991.03 and 78,916,625.81

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Solution

The fourth proportional to 144,995,653.75, 200,093,991.03 and 78,916,625.81 is: 108,904,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,995,653.75 : 200,093,991.03 = 78,916,625.81 : x
  2. Step 2: Convert to fraction form
    144,995,653.75/200,093,991.03 = 78,916,625.81/x
  3. Step 3: Cross multiply
    144,995,653.75x = 200,093,991.03 × 78,916,625.81
  4. Step 4: Simplify right side
    144,995,653.75x = 15,790,742,616,944,008
  5. Step 5: Solve for x
    x = 15,790,742,616,944,008/144,995,653.75
  6. Step 6: Final answer
    x = 108,904,937.55

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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.