Home / 20,754,468.55-31,097,542.89-7,100,150.72

Finding the Fourth Proportional to 20,754,468.55, 31,097,542.89 and 7,100,150.72

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Solution

The fourth proportional to 20,754,468.55, 31,097,542.89 and 7,100,150.72 is: 10,638,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,468.55 : 31,097,542.89 = 7,100,150.72 : x
  2. Step 2: Convert to fraction form
    20,754,468.55/31,097,542.89 = 7,100,150.72/x
  3. Step 3: Cross multiply
    20,754,468.55x = 31,097,542.89 × 7,100,150.72
  4. Step 4: Simplify right side
    20,754,468.55x = 220,797,241,540,664.38
  5. Step 5: Solve for x
    x = 220,797,241,540,664.38/20,754,468.55
  6. Step 6: Final answer
    x = 10,638,539.89

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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.