Home / 12,653,182.80-18,979,774.20-9,269,067.60

Finding the Fourth Proportional to 12,653,182.80, 18,979,774.20 and 9,269,067.60

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Solution

The fourth proportional to 12,653,182.80, 18,979,774.20 and 9,269,067.60 is: 13,903,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653,182.80 : 18,979,774.20 = 9,269,067.60 : x
  2. Step 2: Convert to fraction form
    12,653,182.80/18,979,774.20 = 9,269,067.60/x
  3. Step 3: Cross multiply
    12,653,182.80x = 18,979,774.20 × 9,269,067.60
  4. Step 4: Simplify right side
    12,653,182.80x = 175,924,810,092,535.91
  5. Step 5: Solve for x
    x = 175,924,810,092,535.91/12,653,182.80
  6. Step 6: Final answer
    x = 13,903,601.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.