Home / 12,142,546.22-18,208,631.58-7,028,505.97

Finding the Fourth Proportional to 12,142,546.22, 18,208,631.58 and 7,028,505.97

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Solution

The fourth proportional to 12,142,546.22, 18,208,631.58 and 7,028,505.97 is: 10,539,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142,546.22 : 18,208,631.58 = 7,028,505.97 : x
  2. Step 2: Convert to fraction form
    12,142,546.22/18,208,631.58 = 7,028,505.97/x
  3. Step 3: Cross multiply
    12,142,546.22x = 18,208,631.58 × 7,028,505.97
  4. Step 4: Simplify right side
    12,142,546.22x = 127,979,475,765,560.52
  5. Step 5: Solve for x
    x = 127,979,475,765,560.52/12,142,546.22
  6. Step 6: Final answer
    x = 10,539,756.11

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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.