Home / 72,156,520.97-108,223,845.48-19,638,284.97

Finding the Fourth Proportional to 72,156,520.97, 108,223,845.48 and 19,638,284.97

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Solution

The fourth proportional to 72,156,520.97, 108,223,845.48 and 19,638,284.97 is: 29,454,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,156,520.97 : 108,223,845.48 = 19,638,284.97 : x
  2. Step 2: Convert to fraction form
    72,156,520.97/108,223,845.48 = 19,638,284.97/x
  3. Step 3: Cross multiply
    72,156,520.97x = 108,223,845.48 × 19,638,284.97
  4. Step 4: Simplify right side
    72,156,520.97x = 2,125,330,718,085,486.50
  5. Step 5: Solve for x
    x = 2,125,330,718,085,486.50/72,156,520.97
  6. Step 6: Final answer
    x = 29,454,451.09

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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.