Home / 78,735,268.80-108,660,833.62-43,460,078.32

Finding the Fourth Proportional to 78,735,268.80, 108,660,833.62 and 43,460,078.32

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Solution

The fourth proportional to 78,735,268.80, 108,660,833.62 and 43,460,078.32 is: 59,978,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,735,268.80 : 108,660,833.62 = 43,460,078.32 : x
  2. Step 2: Convert to fraction form
    78,735,268.80/108,660,833.62 = 43,460,078.32/x
  3. Step 3: Cross multiply
    78,735,268.80x = 108,660,833.62 × 43,460,078.32
  4. Step 4: Simplify right side
    78,735,268.80x = 4,722,408,339,441,689
  5. Step 5: Solve for x
    x = 4,722,408,339,441,689/78,735,268.80
  6. Step 6: Final answer
    x = 59,978,309.74

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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.