Home / 18,707,538.70-28,040,312.85-7,923,004.30

Finding the Fourth Proportional to 18,707,538.70, 28,040,312.85 and 7,923,004.30

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Solution

The fourth proportional to 18,707,538.70, 28,040,312.85 and 7,923,004.30 is: 11,875,614.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707,538.70 : 28,040,312.85 = 7,923,004.30 : x
  2. Step 2: Convert to fraction form
    18,707,538.70/28,040,312.85 = 7,923,004.30/x
  3. Step 3: Cross multiply
    18,707,538.70x = 28,040,312.85 × 7,923,004.30
  4. Step 4: Simplify right side
    18,707,538.70x = 222,163,519,283,895.25
  5. Step 5: Solve for x
    x = 222,163,519,283,895.25/18,707,538.70
  6. Step 6: Final answer
    x = 11,875,614.58

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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.