Home / 18,992,959.20-28,489,438.80-5,530,226.40

Finding the Fourth Proportional to 18,992,959.20, 28,489,438.80 and 5,530,226.40

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Solution

The fourth proportional to 18,992,959.20, 28,489,438.80 and 5,530,226.40 is: 8,295,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992,959.20 : 28,489,438.80 = 5,530,226.40 : x
  2. Step 2: Convert to fraction form
    18,992,959.20/28,489,438.80 = 5,530,226.40/x
  3. Step 3: Cross multiply
    18,992,959.20x = 28,489,438.80 × 5,530,226.40
  4. Step 4: Simplify right side
    18,992,959.20x = 157,553,046,572,944.34
  5. Step 5: Solve for x
    x = 157,553,046,572,944.34/18,992,959.20
  6. Step 6: Final answer
    x = 8,295,339.60

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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.