Home / 209,015,023.88-288,015,717.34-161,684,680.34

Finding the Fourth Proportional to 209,015,023.88, 288,015,717.34 and 161,684,680.34

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Solution

The fourth proportional to 209,015,023.88, 288,015,717.34 and 161,684,680.34 is: 222,796,085.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,015,023.88 : 288,015,717.34 = 161,684,680.34 : x
  2. Step 2: Convert to fraction form
    209,015,023.88/288,015,717.34 = 161,684,680.34/x
  3. Step 3: Cross multiply
    209,015,023.88x = 288,015,717.34 × 161,684,680.34
  4. Step 4: Simplify right side
    209,015,023.88x = 46,567,729,191,013,688
  5. Step 5: Solve for x
    x = 46,567,729,191,013,688/209,015,023.88
  6. Step 6: Final answer
    x = 222,796,085.79

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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.