Home / 127,781,906.81-191,692,677.67-54,005,997.31

Finding the Fourth Proportional to 127,781,906.81, 191,692,677.67 and 54,005,997.31

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Solution

The fourth proportional to 127,781,906.81, 191,692,677.67 and 54,005,997.31 is: 81,017,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,781,906.81 : 191,692,677.67 = 54,005,997.31 : x
  2. Step 2: Convert to fraction form
    127,781,906.81/191,692,677.67 = 54,005,997.31/x
  3. Step 3: Cross multiply
    127,781,906.81x = 191,692,677.67 × 54,005,997.31
  4. Step 4: Simplify right side
    127,781,906.81x = 10,352,554,233,978,470
  5. Step 5: Solve for x
    x = 10,352,554,233,978,470/127,781,906.81
  6. Step 6: Final answer
    x = 81,017,371.65

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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.