Home / 9,268,408.90-12,790,808.79-5,138,177.39

Finding the Fourth Proportional to 9,268,408.90, 12,790,808.79 and 5,138,177.39

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Solution

The fourth proportional to 9,268,408.90, 12,790,808.79 and 5,138,177.39 is: 7,090,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268,408.90 : 12,790,808.79 = 5,138,177.39 : x
  2. Step 2: Convert to fraction form
    9,268,408.90/12,790,808.79 = 5,138,177.39/x
  3. Step 3: Cross multiply
    9,268,408.90x = 12,790,808.79 × 5,138,177.39
  4. Step 4: Simplify right side
    9,268,408.90x = 65,721,444,489,334.59
  5. Step 5: Solve for x
    x = 65,721,444,489,334.59/9,268,408.90
  6. Step 6: Final answer
    x = 7,090,909.04

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1.5x scale

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.