Home / 221,530,411.28-305,729,394.60-126,164,952.36

Finding the Fourth Proportional to 221,530,411.28, 305,729,394.60 and 126,164,952.36

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Solution

The fourth proportional to 221,530,411.28, 305,729,394.60 and 126,164,952.36 is: 174,117,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,530,411.28 : 305,729,394.60 = 126,164,952.36 : x
  2. Step 2: Convert to fraction form
    221,530,411.28/305,729,394.60 = 126,164,952.36/x
  3. Step 3: Cross multiply
    221,530,411.28x = 305,729,394.60 × 126,164,952.36
  4. Step 4: Simplify right side
    221,530,411.28x = 38,572,334,504,760,648
  5. Step 5: Solve for x
    x = 38,572,334,504,760,648/221,530,411.28
  6. Step 6: Final answer
    x = 174,117,559.22

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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.