Home / 68,899,879.24-103,370,030.22-20,379,013

Finding the Fourth Proportional to 68,899,879.24, 103,370,030.22 and 20,379,013

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Solution

The fourth proportional to 68,899,879.24, 103,370,030.22 and 20,379,013 is: 30,574,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,899,879.24 : 103,370,030.22 = 20,379,013 : x
  2. Step 2: Convert to fraction form
    68,899,879.24/103,370,030.22 = 20,379,013/x
  3. Step 3: Cross multiply
    68,899,879.24x = 103,370,030.22 × 20,379,013
  4. Step 4: Simplify right side
    68,899,879.24x = 2,106,579,189,663,772.75
  5. Step 5: Solve for x
    x = 2,106,579,189,663,772.75/68,899,879.24
  6. Step 6: Final answer
    x = 30,574,497.56

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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.