Home / 159,117,190.71-219,569,852.79-89,489,119.49

Finding the Fourth Proportional to 159,117,190.71, 219,569,852.79 and 89,489,119.49

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Solution

The fourth proportional to 159,117,190.71, 219,569,852.79 and 89,489,119.49 is: 123,488,308.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,117,190.71 : 219,569,852.79 = 89,489,119.49 : x
  2. Step 2: Convert to fraction form
    159,117,190.71/219,569,852.79 = 89,489,119.49/x
  3. Step 3: Cross multiply
    159,117,190.71x = 219,569,852.79 × 89,489,119.49
  4. Step 4: Simplify right side
    159,117,190.71x = 19,649,112,792,726,016
  5. Step 5: Solve for x
    x = 19,649,112,792,726,016/159,117,190.71
  6. Step 6: Final answer
    x = 123,488,308.87

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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.