Home / 13,030,185.80-17,981,649.38-7,149,858.62

Finding the Fourth Proportional to 13,030,185.80, 17,981,649.38 and 7,149,858.62

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Solution

The fourth proportional to 13,030,185.80, 17,981,649.38 and 7,149,858.62 is: 9,866,801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030,185.80 : 17,981,649.38 = 7,149,858.62 : x
  2. Step 2: Convert to fraction form
    13,030,185.80/17,981,649.38 = 7,149,858.62/x
  3. Step 3: Cross multiply
    13,030,185.80x = 17,981,649.38 × 7,149,858.62
  4. Step 4: Simplify right side
    13,030,185.80x = 128,566,250,695,753.12
  5. Step 5: Solve for x
    x = 128,566,250,695,753.12/13,030,185.80
  6. Step 6: Final answer
    x = 9,866,801.04

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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.