Home / 13,210,172,323.20-18,230,040,403.20-7,269,724,857.60

Finding the Fourth Proportional to 13,210,172,323.20, 18,230,040,403.20 and 7,269,724,857.60

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Solution

The fourth proportional to 13,210,172,323.20, 18,230,040,403.20 and 7,269,724,857.60 is: 10,032,221,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,172,323.20 : 18,230,040,403.20 = 7,269,724,857.60 : x
  2. Step 2: Convert to fraction form
    13,210,172,323.20/18,230,040,403.20 = 7,269,724,857.60/x
  3. Step 3: Cross multiply
    13,210,172,323.20x = 18,230,040,403.20 × 7,269,724,857.60
  4. Step 4: Simplify right side
    13,210,172,323.20x = 132,527,377,874,195,382,272
  5. Step 5: Solve for x
    x = 132,527,377,874,195,382,272/13,210,172,323.20
  6. Step 6: Final answer
    x = 10,032,221,732.75

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1.5x scale

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.