Home / 12,678,989.93-19,027,565.34-5,397,554.77

Finding the Fourth Proportional to 12,678,989.93, 19,027,565.34 and 5,397,554.77

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Solution

The fourth proportional to 12,678,989.93, 19,027,565.34 and 5,397,554.77 is: 8,100,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678,989.93 : 19,027,565.34 = 5,397,554.77 : x
  2. Step 2: Convert to fraction form
    12,678,989.93/19,027,565.34 = 5,397,554.77/x
  3. Step 3: Cross multiply
    12,678,989.93x = 19,027,565.34 × 5,397,554.77
  4. Step 4: Simplify right side
    12,678,989.93x = 102,702,326,062,403.66
  5. Step 5: Solve for x
    x = 102,702,326,062,403.66/12,678,989.93
  6. Step 6: Final answer
    x = 8,100,197.78

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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.