Home / 138,836,362.16-208,107,712.54-51,341,660.48

Finding the Fourth Proportional to 138,836,362.16, 208,107,712.54 and 51,341,660.48

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Solution

The fourth proportional to 138,836,362.16, 208,107,712.54 and 51,341,660.48 is: 76,958,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,836,362.16 : 208,107,712.54 = 51,341,660.48 : x
  2. Step 2: Convert to fraction form
    138,836,362.16/208,107,712.54 = 51,341,660.48/x
  3. Step 3: Cross multiply
    138,836,362.16x = 208,107,712.54 × 51,341,660.48
  4. Step 4: Simplify right side
    138,836,362.16x = 10,684,595,520,498,118
  5. Step 5: Solve for x
    x = 10,684,595,520,498,118/138,836,362.16
  6. Step 6: Final answer
    x = 76,958,192.75

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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.