Home / 138,805,043.20-208,058,265.60-52,510,105.60

Finding the Fourth Proportional to 138,805,043.20, 208,058,265.60 and 52,510,105.60

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Solution

The fourth proportional to 138,805,043.20, 208,058,265.60 and 52,510,105.60 is: 78,708,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,805,043.20 : 208,058,265.60 = 52,510,105.60 : x
  2. Step 2: Convert to fraction form
    138,805,043.20/208,058,265.60 = 52,510,105.60/x
  3. Step 3: Cross multiply
    138,805,043.20x = 208,058,265.60 × 52,510,105.60
  4. Step 4: Simplify right side
    138,805,043.20x = 10,925,161,497,608,848
  5. Step 5: Solve for x
    x = 10,925,161,497,608,848/138,805,043.20
  6. Step 6: Final answer
    x = 78,708,678.34

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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.