Home / 81,092,418.72-111,906,646.96-43,921,774.32

Finding the Fourth Proportional to 81,092,418.72, 111,906,646.96 and 43,921,774.32

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Solution

The fourth proportional to 81,092,418.72, 111,906,646.96 and 43,921,774.32 is: 60,611,566.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,092,418.72 : 111,906,646.96 = 43,921,774.32 : x
  2. Step 2: Convert to fraction form
    81,092,418.72/111,906,646.96 = 43,921,774.32/x
  3. Step 3: Cross multiply
    81,092,418.72x = 111,906,646.96 × 43,921,774.32
  4. Step 4: Simplify right side
    81,092,418.72x = 4,915,138,492,685,034
  5. Step 5: Solve for x
    x = 4,915,138,492,685,034/81,092,418.72
  6. Step 6: Final answer
    x = 60,611,566.04

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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.