Home / 18,379,413.30-27,577,977.30-12,976,429.80

Finding the Fourth Proportional to 18,379,413.30, 27,577,977.30 and 12,976,429.80

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Solution

The fourth proportional to 18,379,413.30, 27,577,977.30 and 12,976,429.80 is: 19,470,898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,413.30 : 27,577,977.30 = 12,976,429.80 : x
  2. Step 2: Convert to fraction form
    18,379,413.30/27,577,977.30 = 12,976,429.80/x
  3. Step 3: Cross multiply
    18,379,413.30x = 27,577,977.30 × 12,976,429.80
  4. Step 4: Simplify right side
    18,379,413.30x = 357,863,686,459,443.56
  5. Step 5: Solve for x
    x = 357,863,686,459,443.56/18,379,413.30
  6. Step 6: Final answer
    x = 19,470,898.26

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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.