Home / 78,687,296.57-108,588,573.87-43,404,305.78

Finding the Fourth Proportional to 78,687,296.57, 108,588,573.87 and 43,404,305.78

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Solution

The fourth proportional to 78,687,296.57, 108,588,573.87 and 43,404,305.78 is: 59,897,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,687,296.57 : 108,588,573.87 = 43,404,305.78 : x
  2. Step 2: Convert to fraction form
    78,687,296.57/108,588,573.87 = 43,404,305.78/x
  3. Step 3: Cross multiply
    78,687,296.57x = 108,588,573.87 × 43,404,305.78
  4. Step 4: Simplify right side
    78,687,296.57x = 4,713,211,664,467,598
  5. Step 5: Solve for x
    x = 4,713,211,664,467,598/78,687,296.57
  6. Step 6: Final answer
    x = 59,897,999.68

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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.