Home / 151,719,625.69-209,373,721.77-82,105,009.99

Finding the Fourth Proportional to 151,719,625.69, 209,373,721.77 and 82,105,009.99

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Solution

The fourth proportional to 151,719,625.69, 209,373,721.77 and 82,105,009.99 is: 113,305,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,719,625.69 : 209,373,721.77 = 82,105,009.99 : x
  2. Step 2: Convert to fraction form
    151,719,625.69/209,373,721.77 = 82,105,009.99/x
  3. Step 3: Cross multiply
    151,719,625.69x = 209,373,721.77 × 82,105,009.99
  4. Step 4: Simplify right side
    151,719,625.69x = 17,190,631,517,569,330
  5. Step 5: Solve for x
    x = 17,190,631,517,569,330/151,719,625.69
  6. Step 6: Final answer
    x = 113,305,259.22

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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.