Home / 118,540,904.52-177,811,356.78-78,141,940.68

Finding the Fourth Proportional to 118,540,904.52, 177,811,356.78 and 78,141,940.68

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Solution

The fourth proportional to 118,540,904.52, 177,811,356.78 and 78,141,940.68 is: 117,212,911.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,540,904.52 : 177,811,356.78 = 78,141,940.68 : x
  2. Step 2: Convert to fraction form
    118,540,904.52/177,811,356.78 = 78,141,940.68/x
  3. Step 3: Cross multiply
    118,540,904.52x = 177,811,356.78 × 78,141,940.68
  4. Step 4: Simplify right side
    118,540,904.52x = 13,894,524,493,733,078
  5. Step 5: Solve for x
    x = 13,894,524,493,733,078/118,540,904.52
  6. Step 6: Final answer
    x = 117,212,911.02

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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.