Home / 153,729,533.38-212,125,826-91,836,729.22

Finding the Fourth Proportional to 153,729,533.38, 212,125,826 and 91,836,729.22

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Solution

The fourth proportional to 153,729,533.38, 212,125,826 and 91,836,729.22 is: 126,722,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,729,533.38 : 212,125,826 = 91,836,729.22 : x
  2. Step 2: Convert to fraction form
    153,729,533.38/212,125,826 = 91,836,729.22/x
  3. Step 3: Cross multiply
    153,729,533.38x = 212,125,826 × 91,836,729.22
  4. Step 4: Simplify right side
    153,729,533.38x = 19,480,942,042,930,836
  5. Step 5: Solve for x
    x = 19,480,942,042,930,836/153,729,533.38
  6. Step 6: Final answer
    x = 126,722,182.88

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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.