Home / 78,567,380.37-108,413,159.89-45,527,029.09

Finding the Fourth Proportional to 78,567,380.37, 108,413,159.89 and 45,527,029.09

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Solution

The fourth proportional to 78,567,380.37, 108,413,159.89 and 45,527,029.09 is: 62,821,606.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,567,380.37 : 108,413,159.89 = 45,527,029.09 : x
  2. Step 2: Convert to fraction form
    78,567,380.37/108,413,159.89 = 45,527,029.09/x
  3. Step 3: Cross multiply
    78,567,380.37x = 108,413,159.89 × 45,527,029.09
  4. Step 4: Simplify right side
    78,567,380.37x = 4,935,729,083,823,217
  5. Step 5: Solve for x
    x = 4,935,729,083,823,217/78,567,380.37
  6. Step 6: Final answer
    x = 62,821,606.89

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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.