Home / 144,519,790.20-199,436,805.30-78,440,284.83

Finding the Fourth Proportional to 144,519,790.20, 199,436,805.30 and 78,440,284.83

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Solution

The fourth proportional to 144,519,790.20, 199,436,805.30 and 78,440,284.83 is: 108,247,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,519,790.20 : 199,436,805.30 = 78,440,284.83 : x
  2. Step 2: Convert to fraction form
    144,519,790.20/199,436,805.30 = 78,440,284.83/x
  3. Step 3: Cross multiply
    144,519,790.20x = 199,436,805.30 × 78,440,284.83
  4. Step 4: Simplify right side
    144,519,790.20x = 15,643,879,813,317,254
  5. Step 5: Solve for x
    x = 15,643,879,813,317,254/144,519,790.20
  6. Step 6: Final answer
    x = 108,247,318.87

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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.