Home / 20,369,601.90-28,109,660.81-11,202,244.65

Finding the Fourth Proportional to 20,369,601.90, 28,109,660.81 and 11,202,244.65

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Solution

The fourth proportional to 20,369,601.90, 28,109,660.81 and 11,202,244.65 is: 15,458,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369,601.90 : 28,109,660.81 = 11,202,244.65 : x
  2. Step 2: Convert to fraction form
    20,369,601.90/28,109,660.81 = 11,202,244.65/x
  3. Step 3: Cross multiply
    20,369,601.90x = 28,109,660.81 × 11,202,244.65
  4. Step 4: Simplify right side
    20,369,601.90x = 314,891,297,366,125.94
  5. Step 5: Solve for x
    x = 314,891,297,366,125.94/20,369,601.90
  6. Step 6: Final answer
    x = 15,458,883.24

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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.