Home / 78,635,422.08-108,512,991.36-43,830,979.20

Finding the Fourth Proportional to 78,635,422.08, 108,512,991.36 and 43,830,979.20

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Solution

The fourth proportional to 78,635,422.08, 108,512,991.36 and 43,830,979.20 is: 60,484,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,635,422.08 : 108,512,991.36 = 43,830,979.20 : x
  2. Step 2: Convert to fraction form
    78,635,422.08/108,512,991.36 = 43,830,979.20/x
  3. Step 3: Cross multiply
    78,635,422.08x = 108,512,991.36 × 43,830,979.20
  4. Step 4: Simplify right side
    78,635,422.08x = 4,756,230,667,229,940
  5. Step 5: Solve for x
    x = 4,756,230,667,229,940/78,635,422.08
  6. Step 6: Final answer
    x = 60,484,582.41

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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.