Home / 72,718,451.70-109,115,831.79-27,311,588.34

Finding the Fourth Proportional to 72,718,451.70, 109,115,831.79 and 27,311,588.34

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Solution

The fourth proportional to 72,718,451.70, 109,115,831.79 and 27,311,588.34 is: 40,981,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,718,451.70 : 109,115,831.79 = 27,311,588.34 : x
  2. Step 2: Convert to fraction form
    72,718,451.70/109,115,831.79 = 27,311,588.34/x
  3. Step 3: Cross multiply
    72,718,451.70x = 109,115,831.79 × 27,311,588.34
  4. Step 4: Simplify right side
    72,718,451.70x = 2,980,126,679,225,165.50
  5. Step 5: Solve for x
    x = 2,980,126,679,225,165.50/72,718,451.70
  6. Step 6: Final answer
    x = 40,981,712.48

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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.