Home / 78,834,576.16-108,001,562.42-75,887,149.60

Finding the Fourth Proportional to 78,834,576.16, 108,001,562.42 and 75,887,149.60

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Solution

The fourth proportional to 78,834,576.16, 108,001,562.42 and 75,887,149.60 is: 103,963,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,834,576.16 : 108,001,562.42 = 75,887,149.60 : x
  2. Step 2: Convert to fraction form
    78,834,576.16/108,001,562.42 = 75,887,149.60/x
  3. Step 3: Cross multiply
    78,834,576.16x = 108,001,562.42 × 75,887,149.60
  4. Step 4: Simplify right side
    78,834,576.16x = 8,195,930,724,400,278
  5. Step 5: Solve for x
    x = 8,195,930,724,400,278/78,834,576.16
  6. Step 6: Final answer
    x = 103,963,655.59

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.