Home / 20,269,762.30-30,404,643.46-5,123,693.80

Finding the Fourth Proportional to 20,269,762.30, 30,404,643.46 and 5,123,693.80

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Solution

The fourth proportional to 20,269,762.30, 30,404,643.46 and 5,123,693.80 is: 7,685,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,762.30 : 30,404,643.46 = 5,123,693.80 : x
  2. Step 2: Convert to fraction form
    20,269,762.30/30,404,643.46 = 5,123,693.80/x
  3. Step 3: Cross multiply
    20,269,762.30x = 30,404,643.46 × 5,123,693.80
  4. Step 4: Simplify right side
    20,269,762.30x = 155,784,083,187,212.56
  5. Step 5: Solve for x
    x = 155,784,083,187,212.56/20,269,762.30
  6. Step 6: Final answer
    x = 7,685,540.70

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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.