Home / 144,835,993.14-199,874,709.96-78,756,017.76

Finding the Fourth Proportional to 144,835,993.14, 199,874,709.96 and 78,756,017.76

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Solution

The fourth proportional to 144,835,993.14, 199,874,709.96 and 78,756,017.76 is: 108,683,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,835,993.14 : 199,874,709.96 = 78,756,017.76 : x
  2. Step 2: Convert to fraction form
    144,835,993.14/199,874,709.96 = 78,756,017.76/x
  3. Step 3: Cross multiply
    144,835,993.14x = 199,874,709.96 × 78,756,017.76
  4. Step 4: Simplify right side
    144,835,993.14x = 15,741,336,207,384,610
  5. Step 5: Solve for x
    x = 15,741,336,207,384,610/144,835,993.14
  6. Step 6: Final answer
    x = 108,683,869.71

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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.