Home / 221,530,410.28-305,729,393.22-126,164,951.36

Finding the Fourth Proportional to 221,530,410.28, 305,729,393.22 and 126,164,951.36

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Solution

The fourth proportional to 221,530,410.28, 305,729,393.22 and 126,164,951.36 is: 174,117,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,530,410.28 : 305,729,393.22 = 126,164,951.36 : x
  2. Step 2: Convert to fraction form
    221,530,410.28/305,729,393.22 = 126,164,951.36/x
  3. Step 3: Cross multiply
    221,530,410.28x = 305,729,393.22 × 126,164,951.36
  4. Step 4: Simplify right side
    221,530,410.28x = 38,572,334,024,923,616
  5. Step 5: Solve for x
    x = 38,572,334,024,923,616/221,530,410.28
  6. Step 6: Final answer
    x = 174,117,557.84

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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.