Home / 159,787,076.41-220,506,212.82-90,187,201.09

Finding the Fourth Proportional to 159,787,076.41, 220,506,212.82 and 90,187,201.09

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Solution

The fourth proportional to 159,787,076.41, 220,506,212.82 and 90,187,201.09 is: 124,458,364.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,787,076.41 : 220,506,212.82 = 90,187,201.09 : x
  2. Step 2: Convert to fraction form
    159,787,076.41/220,506,212.82 = 90,187,201.09/x
  3. Step 3: Cross multiply
    159,787,076.41x = 220,506,212.82 × 90,187,201.09
  4. Step 4: Simplify right side
    159,787,076.41x = 19,886,838,157,191,676
  5. Step 5: Solve for x
    x = 19,886,838,157,191,676/159,787,076.41
  6. Step 6: Final answer
    x = 124,458,364.24

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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.