Home / 78,116,224.28-117,179,208-20,608,550.80

Finding the Fourth Proportional to 78,116,224.28, 117,179,208 and 20,608,550.80

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Solution

The fourth proportional to 78,116,224.28, 117,179,208 and 20,608,550.80 is: 30,914,111.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,116,224.28 : 117,179,208 = 20,608,550.80 : x
  2. Step 2: Convert to fraction form
    78,116,224.28/117,179,208 = 20,608,550.80/x
  3. Step 3: Cross multiply
    78,116,224.28x = 117,179,208 × 20,608,550.80
  4. Step 4: Simplify right side
    78,116,224.28x = 2,414,893,660,478,818.50
  5. Step 5: Solve for x
    x = 2,414,893,660,478,818.50/78,116,224.28
  6. Step 6: Final answer
    x = 30,914,111.41

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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.