Home / 13,309,221.80-18,366,781.44-7,197,650.32

Finding the Fourth Proportional to 13,309,221.80, 18,366,781.44 and 7,197,650.32

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Solution

The fourth proportional to 13,309,221.80, 18,366,781.44 and 7,197,650.32 is: 9,932,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,221.80 : 18,366,781.44 = 7,197,650.32 : x
  2. Step 2: Convert to fraction form
    13,309,221.80/18,366,781.44 = 7,197,650.32/x
  3. Step 3: Cross multiply
    13,309,221.80x = 18,366,781.44 × 7,197,650.32
  4. Step 4: Simplify right side
    13,309,221.80x = 132,197,670,308,986.08
  5. Step 5: Solve for x
    x = 132,197,670,308,986.08/13,309,221.80
  6. Step 6: Final answer
    x = 9,932,787.38

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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.