Home / 159,720,570.78-220,414,385.97-86,381,712.78

Finding the Fourth Proportional to 159,720,570.78, 220,414,385.97 and 86,381,712.78

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Solution

The fourth proportional to 159,720,570.78, 220,414,385.97 and 86,381,712.78 is: 119,206,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,720,570.78 : 220,414,385.97 = 86,381,712.78 : x
  2. Step 2: Convert to fraction form
    159,720,570.78/220,414,385.97 = 86,381,712.78/x
  3. Step 3: Cross multiply
    159,720,570.78x = 220,414,385.97 × 86,381,712.78
  4. Step 4: Simplify right side
    159,720,570.78x = 19,039,772,181,440,600
  5. Step 5: Solve for x
    x = 19,039,772,181,440,600/159,720,570.78
  6. Step 6: Final answer
    x = 119,206,762.71

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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.