Home / 221,306,806.19-305,407,643.48-120,839,226.86

Finding the Fourth Proportional to 221,306,806.19, 305,407,643.48 and 120,839,226.86

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Solution

The fourth proportional to 221,306,806.19, 305,407,643.48 and 120,839,226.86 is: 166,760,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,306,806.19 : 305,407,643.48 = 120,839,226.86 : x
  2. Step 2: Convert to fraction form
    221,306,806.19/305,407,643.48 = 120,839,226.86/x
  3. Step 3: Cross multiply
    221,306,806.19x = 305,407,643.48 × 120,839,226.86
  4. Step 4: Simplify right side
    221,306,806.19x = 36,905,223,514,834,120
  5. Step 5: Solve for x
    x = 36,905,223,514,834,120/221,306,806.19
  6. Step 6: Final answer
    x = 166,760,454.18

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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.