Home / 144,520,574.76-199,435,890.69-78,439,654.80

Finding the Fourth Proportional to 144,520,574.76, 199,435,890.69 and 78,439,654.80

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Solution

The fourth proportional to 144,520,574.76, 199,435,890.69 and 78,439,654.80 is: 108,245,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,520,574.76 : 199,435,890.69 = 78,439,654.80 : x
  2. Step 2: Convert to fraction form
    144,520,574.76/199,435,890.69 = 78,439,654.80/x
  3. Step 3: Cross multiply
    144,520,574.76x = 199,435,890.69 × 78,439,654.80
  4. Step 4: Simplify right side
    144,520,574.76x = 15,643,682,420,454,134
  5. Step 5: Solve for x
    x = 15,643,682,420,454,134/144,520,574.76
  6. Step 6: Final answer
    x = 108,245,365.38

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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.