Home / 151,335,652.41-208,843,838.06-85,256,942.78

Finding the Fourth Proportional to 151,335,652.41, 208,843,838.06 and 85,256,942.78

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Solution

The fourth proportional to 151,335,652.41, 208,843,838.06 and 85,256,942.78 is: 117,654,940.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,335,652.41 : 208,843,838.06 = 85,256,942.78 : x
  2. Step 2: Convert to fraction form
    151,335,652.41/208,843,838.06 = 85,256,942.78/x
  3. Step 3: Cross multiply
    151,335,652.41x = 208,843,838.06 × 85,256,942.78
  4. Step 4: Simplify right side
    151,335,652.41x = 17,805,387,151,532,832
  5. Step 5: Solve for x
    x = 17,805,387,151,532,832/151,335,652.41
  6. Step 6: Final answer
    x = 117,654,940.31

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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.