Home / 20,474,400.51-28,253,516.67-11,180,120.72

Finding the Fourth Proportional to 20,474,400.51, 28,253,516.67 and 11,180,120.72

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Solution

The fourth proportional to 20,474,400.51, 28,253,516.67 and 11,180,120.72 is: 15,427,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474,400.51 : 28,253,516.67 = 11,180,120.72 : x
  2. Step 2: Convert to fraction form
    20,474,400.51/28,253,516.67 = 11,180,120.72/x
  3. Step 3: Cross multiply
    20,474,400.51x = 28,253,516.67 × 11,180,120.72
  4. Step 4: Simplify right side
    20,474,400.51x = 315,877,726,993,864.81
  5. Step 5: Solve for x
    x = 315,877,726,993,864.81/20,474,400.51
  6. Step 6: Final answer
    x = 15,427,935.33

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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.