Home / 103,981,529.18-143,498,993.21-57,571,781.74

Finding the Fourth Proportional to 103,981,529.18, 143,498,993.21 and 57,571,781.74

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Solution

The fourth proportional to 103,981,529.18, 143,498,993.21 and 57,571,781.74 is: 79,451,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,981,529.18 : 143,498,993.21 = 57,571,781.74 : x
  2. Step 2: Convert to fraction form
    103,981,529.18/143,498,993.21 = 57,571,781.74/x
  3. Step 3: Cross multiply
    103,981,529.18x = 143,498,993.21 × 57,571,781.74
  4. Step 4: Simplify right side
    103,981,529.18x = 8,261,492,716,565,150
  5. Step 5: Solve for x
    x = 8,261,492,716,565,150/103,981,529.18
  6. Step 6: Final answer
    x = 79,451,540.88

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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.