Home / 427,174,185.60-640,825,240.80-154,608,725.52

Finding the Fourth Proportional to 427,174,185.60, 640,825,240.80 and 154,608,725.52

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Solution

The fourth proportional to 427,174,185.60, 640,825,240.80 and 154,608,725.52 is: 231,936,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,174,185.60 : 640,825,240.80 = 154,608,725.52 : x
  2. Step 2: Convert to fraction form
    427,174,185.60/640,825,240.80 = 154,608,725.52/x
  3. Step 3: Cross multiply
    427,174,185.60x = 640,825,240.80 × 154,608,725.52
  4. Step 4: Simplify right side
    427,174,185.60x = 99,077,173,761,135,104
  5. Step 5: Solve for x
    x = 99,077,173,761,135,104/427,174,185.60
  6. Step 6: Final answer
    x = 231,936,238.43

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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.