Home / 312,118,712.70-468,036,351.45-117,965,600.70

Finding the Fourth Proportional to 312,118,712.70, 468,036,351.45 and 117,965,600.70

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Solution

The fourth proportional to 312,118,712.70, 468,036,351.45 and 117,965,600.70 is: 176,894,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,118,712.70 : 468,036,351.45 = 117,965,600.70 : x
  2. Step 2: Convert to fraction form
    312,118,712.70/468,036,351.45 = 117,965,600.70/x
  3. Step 3: Cross multiply
    312,118,712.70x = 468,036,351.45 × 117,965,600.70
  4. Step 4: Simplify right side
    312,118,712.70x = 55,212,189,348,235,568
  5. Step 5: Solve for x
    x = 55,212,189,348,235,568/312,118,712.70
  6. Step 6: Final answer
    x = 176,894,838.73

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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.