Home / 21,978,814.08-30,332,579.28-12,192,413.52

Finding the Fourth Proportional to 21,978,814.08, 30,332,579.28 and 12,192,413.52

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Solution

The fourth proportional to 21,978,814.08, 30,332,579.28 and 12,192,413.52 is: 16,826,537.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,978,814.08 : 30,332,579.28 = 12,192,413.52 : x
  2. Step 2: Convert to fraction form
    21,978,814.08/30,332,579.28 = 12,192,413.52/x
  3. Step 3: Cross multiply
    21,978,814.08x = 30,332,579.28 × 12,192,413.52
  4. Step 4: Simplify right side
    21,978,814.08x = 369,827,349,709,943.88
  5. Step 5: Solve for x
    x = 369,827,349,709,943.88/21,978,814.08
  6. Step 6: Final answer
    x = 16,826,537.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.