Home / 20,178,690.80-30,262,131.30-7,223,340.20

Finding the Fourth Proportional to 20,178,690.80, 30,262,131.30 and 7,223,340.20

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Solution

The fourth proportional to 20,178,690.80, 30,262,131.30 and 7,223,340.20 is: 10,832,896.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,690.80 : 30,262,131.30 = 7,223,340.20 : x
  2. Step 2: Convert to fraction form
    20,178,690.80/30,262,131.30 = 7,223,340.20/x
  3. Step 3: Cross multiply
    20,178,690.80x = 30,262,131.30 × 7,223,340.20
  4. Step 4: Simplify right side
    20,178,690.80x = 218,593,669,556,968.28
  5. Step 5: Solve for x
    x = 218,593,669,556,968.28/20,178,690.80
  6. Step 6: Final answer
    x = 10,832,896.53

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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.