Home / 78,384,161.49-108,177,029.55-43,108,177.05

Finding the Fourth Proportional to 78,384,161.49, 108,177,029.55 and 43,108,177.05

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Solution

The fourth proportional to 78,384,161.49, 108,177,029.55 and 43,108,177.05 is: 59,493,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,161.49 : 108,177,029.55 = 43,108,177.05 : x
  2. Step 2: Convert to fraction form
    78,384,161.49/108,177,029.55 = 43,108,177.05/x
  3. Step 3: Cross multiply
    78,384,161.49x = 108,177,029.55 × 43,108,177.05
  4. Step 4: Simplify right side
    78,384,161.49x = 4,663,314,542,584,481
  5. Step 5: Solve for x
    x = 4,663,314,542,584,481/78,384,161.49
  6. Step 6: Final answer
    x = 59,493,071.74

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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.