Home / 221,530,408.28-305,729,390.46-126,164,949.36

Finding the Fourth Proportional to 221,530,408.28, 305,729,390.46 and 126,164,949.36

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Solution

The fourth proportional to 221,530,408.28, 305,729,390.46 and 126,164,949.36 is: 174,117,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,530,408.28 : 305,729,390.46 = 126,164,949.36 : x
  2. Step 2: Convert to fraction form
    221,530,408.28/305,729,390.46 = 126,164,949.36/x
  3. Step 3: Cross multiply
    221,530,408.28x = 305,729,390.46 × 126,164,949.36
  4. Step 4: Simplify right side
    221,530,408.28x = 38,572,333,065,249,568
  5. Step 5: Solve for x
    x = 38,572,333,065,249,568/221,530,408.28
  6. Step 6: Final answer
    x = 174,117,555.08

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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.