Home / 18,873,223.79-28,309,550.80-8,491,111.34

Finding the Fourth Proportional to 18,873,223.79, 28,309,550.80 and 8,491,111.34

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Solution

The fourth proportional to 18,873,223.79, 28,309,550.80 and 8,491,111.34 is: 12,736,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873,223.79 : 28,309,550.80 = 8,491,111.34 : x
  2. Step 2: Convert to fraction form
    18,873,223.79/28,309,550.80 = 8,491,111.34/x
  3. Step 3: Cross multiply
    18,873,223.79x = 28,309,550.80 × 8,491,111.34
  4. Step 4: Simplify right side
    18,873,223.79x = 240,379,547,665,410.56
  5. Step 5: Solve for x
    x = 240,379,547,665,410.56/18,873,223.79
  6. Step 6: Final answer
    x = 12,736,538.83

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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.