Home / 143,546,233.80-215,062,742.70-87,356,857.80

Finding the Fourth Proportional to 143,546,233.80, 215,062,742.70 and 87,356,857.80

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Solution

The fourth proportional to 143,546,233.80, 215,062,742.70 and 87,356,857.80 is: 130,879,124.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,546,233.80 : 215,062,742.70 = 87,356,857.80 : x
  2. Step 2: Convert to fraction form
    143,546,233.80/215,062,742.70 = 87,356,857.80/x
  3. Step 3: Cross multiply
    143,546,233.80x = 215,062,742.70 × 87,356,857.80
  4. Step 4: Simplify right side
    143,546,233.80x = 18,787,205,432,121,888
  5. Step 5: Solve for x
    x = 18,787,205,432,121,888/143,546,233.80
  6. Step 6: Final answer
    x = 130,879,124.69

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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.