Home / 117,632,221.92-162,336,945.22-65,425,032.72

Finding the Fourth Proportional to 117,632,221.92, 162,336,945.22 and 65,425,032.72

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Solution

The fourth proportional to 117,632,221.92, 162,336,945.22 and 65,425,032.72 is: 90,289,036.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,632,221.92 : 162,336,945.22 = 65,425,032.72 : x
  2. Step 2: Convert to fraction form
    117,632,221.92/162,336,945.22 = 65,425,032.72/x
  3. Step 3: Cross multiply
    117,632,221.92x = 162,336,945.22 × 65,425,032.72
  4. Step 4: Simplify right side
    117,632,221.92x = 10,620,899,952,519,784
  5. Step 5: Solve for x
    x = 10,620,899,952,519,784/117,632,221.92
  6. Step 6: Final answer
    x = 90,289,036.28

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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.