Home / 221,872,618.48-332,161,342.40-129,473,209.84

Finding the Fourth Proportional to 221,872,618.48, 332,161,342.40 and 129,473,209.84

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Solution

The fourth proportional to 221,872,618.48, 332,161,342.40 and 129,473,209.84 is: 193,831,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,872,618.48 : 332,161,342.40 = 129,473,209.84 : x
  2. Step 2: Convert to fraction form
    221,872,618.48/332,161,342.40 = 129,473,209.84/x
  3. Step 3: Cross multiply
    221,872,618.48x = 332,161,342.40 × 129,473,209.84
  4. Step 4: Simplify right side
    221,872,618.48x = 43,005,995,185,291,288
  5. Step 5: Solve for x
    x = 43,005,995,185,291,288/221,872,618.48
  6. Step 6: Final answer
    x = 193,831,917.97

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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.