Home / 105,787,719.82-158,609,137.78-53,871,828.08

Finding the Fourth Proportional to 105,787,719.82, 158,609,137.78 and 53,871,828.08

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Solution

The fourth proportional to 105,787,719.82, 158,609,137.78 and 53,871,828.08 is: 80,770,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,787,719.82 : 158,609,137.78 = 53,871,828.08 : x
  2. Step 2: Convert to fraction form
    105,787,719.82/158,609,137.78 = 53,871,828.08/x
  3. Step 3: Cross multiply
    105,787,719.82x = 158,609,137.78 × 53,871,828.08
  4. Step 4: Simplify right side
    105,787,719.82x = 8,544,564,202,131,834
  5. Step 5: Solve for x
    x = 8,544,564,202,131,834/105,787,719.82
  6. Step 6: Final answer
    x = 80,770,851.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.