Home / 20,415,746.24-28,173,469.60-11,123,703.20

Finding the Fourth Proportional to 20,415,746.24, 28,173,469.60 and 11,123,703.20

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Solution

The fourth proportional to 20,415,746.24, 28,173,469.60 and 11,123,703.20 is: 15,350,568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,746.24 : 28,173,469.60 = 11,123,703.20 : x
  2. Step 2: Convert to fraction form
    20,415,746.24/28,173,469.60 = 11,123,703.20/x
  3. Step 3: Cross multiply
    20,415,746.24x = 28,173,469.60 × 11,123,703.20
  4. Step 4: Simplify right side
    20,415,746.24x = 313,393,313,944,622.69
  5. Step 5: Solve for x
    x = 313,393,313,944,622.69/20,415,746.24
  6. Step 6: Final answer
    x = 15,350,568.64

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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.