Home / 144,146,489.46-198,921,169.62-78,065,467.98

Finding the Fourth Proportional to 144,146,489.46, 198,921,169.62 and 78,065,467.98

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Solution

The fourth proportional to 144,146,489.46, 198,921,169.62 and 78,065,467.98 is: 107,729,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,146,489.46 : 198,921,169.62 = 78,065,467.98 : x
  2. Step 2: Convert to fraction form
    144,146,489.46/198,921,169.62 = 78,065,467.98/x
  3. Step 3: Cross multiply
    144,146,489.46x = 198,921,169.62 × 78,065,467.98
  4. Step 4: Simplify right side
    144,146,489.46x = 15,528,874,197,514,260
  5. Step 5: Solve for x
    x = 15,528,874,197,514,260/144,146,489.46
  6. Step 6: Final answer
    x = 107,729,811.91

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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.