Home / 18,792,145.80-28,188,218.70-9,815,531.40

Finding the Fourth Proportional to 18,792,145.80, 28,188,218.70 and 9,815,531.40

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Solution

The fourth proportional to 18,792,145.80, 28,188,218.70 and 9,815,531.40 is: 14,723,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,145.80 : 28,188,218.70 = 9,815,531.40 : x
  2. Step 2: Convert to fraction form
    18,792,145.80/28,188,218.70 = 9,815,531.40/x
  3. Step 3: Cross multiply
    18,792,145.80x = 28,188,218.70 × 9,815,531.40
  4. Step 4: Simplify right side
    18,792,145.80x = 276,682,345,759,917.19
  5. Step 5: Solve for x
    x = 276,682,345,759,917.19/18,792,145.80
  6. Step 6: Final answer
    x = 14,723,297.10

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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.