Home / 78,785,544.48-108,483,371.12-71,395,296.96

Finding the Fourth Proportional to 78,785,544.48, 108,483,371.12 and 71,395,296.96

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Solution

The fourth proportional to 78,785,544.48, 108,483,371.12 and 71,395,296.96 is: 98,307,405.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,785,544.48 : 108,483,371.12 = 71,395,296.96 : x
  2. Step 2: Convert to fraction form
    78,785,544.48/108,483,371.12 = 71,395,296.96/x
  3. Step 3: Cross multiply
    78,785,544.48x = 108,483,371.12 × 71,395,296.96
  4. Step 4: Simplify right side
    78,785,544.48x = 7,745,202,496,334,287
  5. Step 5: Solve for x
    x = 7,745,202,496,334,287/78,785,544.48
  6. Step 6: Final answer
    x = 98,307,405.85

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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.