Home / 20,197,977.48-30,300,917.40-7,418,578.32

Finding the Fourth Proportional to 20,197,977.48, 30,300,917.40 and 7,418,578.32

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Solution

The fourth proportional to 20,197,977.48, 30,300,917.40 and 7,418,578.32 is: 11,129,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197,977.48 : 30,300,917.40 = 7,418,578.32 : x
  2. Step 2: Convert to fraction form
    20,197,977.48/30,300,917.40 = 7,418,578.32/x
  3. Step 3: Cross multiply
    20,197,977.48x = 30,300,917.40 × 7,418,578.32
  4. Step 4: Simplify right side
    20,197,977.48x = 224,789,728,899,750.78
  5. Step 5: Solve for x
    x = 224,789,728,899,750.78/20,197,977.48
  6. Step 6: Final answer
    x = 11,129,318.72

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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.