Home / 221,608,032.03-305,820,048.96-121,138,520.49

Finding the Fourth Proportional to 221,608,032.03, 305,820,048.96 and 121,138,520.49

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Solution

The fourth proportional to 221,608,032.03, 305,820,048.96 and 121,138,520.49 is: 167,171,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,608,032.03 : 305,820,048.96 = 121,138,520.49 : x
  2. Step 2: Convert to fraction form
    221,608,032.03/305,820,048.96 = 121,138,520.49/x
  3. Step 3: Cross multiply
    221,608,032.03x = 305,820,048.96 × 121,138,520.49
  4. Step 4: Simplify right side
    221,608,032.03x = 37,046,588,267,193,760
  5. Step 5: Solve for x
    x = 37,046,588,267,193,760/221,608,032.03
  6. Step 6: Final answer
    x = 167,171,685.65

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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.