Home / 138,757,256.42-208,055,208.93-52,502,315.42

Finding the Fourth Proportional to 138,757,256.42, 208,055,208.93 and 52,502,315.42

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Solution

The fourth proportional to 138,757,256.42, 208,055,208.93 and 52,502,315.42 is: 78,722,947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,757,256.42 : 208,055,208.93 = 52,502,315.42 : x
  2. Step 2: Convert to fraction form
    138,757,256.42/208,055,208.93 = 52,502,315.42/x
  3. Step 3: Cross multiply
    138,757,256.42x = 208,055,208.93 × 52,502,315.42
  4. Step 4: Simplify right side
    138,757,256.42x = 10,923,380,204,016,862
  5. Step 5: Solve for x
    x = 10,923,380,204,016,862/138,757,256.42
  6. Step 6: Final answer
    x = 78,722,947.44

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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.