Home / 159,720,922-220,414,872.72-86,382,064

Finding the Fourth Proportional to 159,720,922, 220,414,872.72 and 86,382,064

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Solution

The fourth proportional to 159,720,922, 220,414,872.72 and 86,382,064 is: 119,207,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,720,922 : 220,414,872.72 = 86,382,064 : x
  2. Step 2: Convert to fraction form
    159,720,922/220,414,872.72 = 86,382,064/x
  3. Step 3: Cross multiply
    159,720,922x = 220,414,872.72 × 86,382,064
  4. Step 4: Simplify right side
    159,720,922x = 19,039,891,641,850,892
  5. Step 5: Solve for x
    x = 19,039,891,641,850,892/159,720,922
  6. Step 6: Final answer
    x = 119,207,248.51

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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.