Home / 18,723,968.64-28,040,550.24-12,950,498.88

Finding the Fourth Proportional to 18,723,968.64, 28,040,550.24 and 12,950,498.88

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Solution

The fourth proportional to 18,723,968.64, 28,040,550.24 and 12,950,498.88 is: 19,394,345.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,968.64 : 28,040,550.24 = 12,950,498.88 : x
  2. Step 2: Convert to fraction form
    18,723,968.64/28,040,550.24 = 12,950,498.88/x
  3. Step 3: Cross multiply
    18,723,968.64x = 28,040,550.24 × 12,950,498.88
  4. Step 4: Simplify right side
    18,723,968.64x = 363,139,114,477,703.75
  5. Step 5: Solve for x
    x = 363,139,114,477,703.75/18,723,968.64
  6. Step 6: Final answer
    x = 19,394,345.37

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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.