Home / 78,384,751.22-108,177,849.25-43,108,772.59

Finding the Fourth Proportional to 78,384,751.22, 108,177,849.25 and 43,108,772.59

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Solution

The fourth proportional to 78,384,751.22, 108,177,849.25 and 43,108,772.59 is: 59,493,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,751.22 : 108,177,849.25 = 43,108,772.59 : x
  2. Step 2: Convert to fraction form
    78,384,751.22/108,177,849.25 = 43,108,772.59/x
  3. Step 3: Cross multiply
    78,384,751.22x = 108,177,849.25 × 43,108,772.59
  4. Step 4: Simplify right side
    78,384,751.22x = 4,663,414,301,837,119
  5. Step 5: Solve for x
    x = 4,663,414,301,837,119/78,384,751.22
  6. Step 6: Final answer
    x = 59,493,896.83

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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.