Home / 131,680,015.54-181,718,358.24-78,756,722.27

Finding the Fourth Proportional to 131,680,015.54, 181,718,358.24 and 78,756,722.27

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Solution

The fourth proportional to 131,680,015.54, 181,718,358.24 and 78,756,722.27 is: 108,684,238.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680,015.54 : 181,718,358.24 = 78,756,722.27 : x
  2. Step 2: Convert to fraction form
    131,680,015.54/181,718,358.24 = 78,756,722.27/x
  3. Step 3: Cross multiply
    131,680,015.54x = 181,718,358.24 × 78,756,722.27
  4. Step 4: Simplify right side
    131,680,015.54x = 14,311,542,271,404,372
  5. Step 5: Solve for x
    x = 14,311,542,271,404,372/131,680,015.54
  6. Step 6: Final answer
    x = 108,684,238.93

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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.