Home / 20,734,134.20-31,078,391.70-7,264,028.60

Finding the Fourth Proportional to 20,734,134.20, 31,078,391.70 and 7,264,028.60

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Solution

The fourth proportional to 20,734,134.20, 31,078,391.70 and 7,264,028.60 is: 10,888,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,134.20 : 31,078,391.70 = 7,264,028.60 : x
  2. Step 2: Convert to fraction form
    20,734,134.20/31,078,391.70 = 7,264,028.60/x
  3. Step 3: Cross multiply
    20,734,134.20x = 31,078,391.70 × 7,264,028.60
  4. Step 4: Simplify right side
    20,734,134.20x = 225,754,326,150,802.59
  5. Step 5: Solve for x
    x = 225,754,326,150,802.59/20,734,134.20
  6. Step 6: Final answer
    x = 10,888,051.75

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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.