Home / 12,510,974.16-18,768,006.72-4,422,281.76

Finding the Fourth Proportional to 12,510,974.16, 18,768,006.72 and 4,422,281.76

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Solution

The fourth proportional to 12,510,974.16, 18,768,006.72 and 4,422,281.76 is: 6,633,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510,974.16 : 18,768,006.72 = 4,422,281.76 : x
  2. Step 2: Convert to fraction form
    12,510,974.16/18,768,006.72 = 4,422,281.76/x
  3. Step 3: Cross multiply
    12,510,974.16x = 18,768,006.72 × 4,422,281.76
  4. Step 4: Simplify right side
    12,510,974.16x = 82,997,413,789,413.42
  5. Step 5: Solve for x
    x = 82,997,413,789,413.42/12,510,974.16
  6. Step 6: Final answer
    x = 6,633,968.92

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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.