Home / 71,959,529.10-107,932,601.40-20,148,821.16

Finding the Fourth Proportional to 71,959,529.10, 107,932,601.40 and 20,148,821.16

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Solution

The fourth proportional to 71,959,529.10, 107,932,601.40 and 20,148,821.16 is: 30,221,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,959,529.10 : 107,932,601.40 = 20,148,821.16 : x
  2. Step 2: Convert to fraction form
    71,959,529.10/107,932,601.40 = 20,148,821.16/x
  3. Step 3: Cross multiply
    71,959,529.10x = 107,932,601.40 × 20,148,821.16
  4. Step 4: Simplify right side
    71,959,529.10x = 2,174,714,682,942,165.75
  5. Step 5: Solve for x
    x = 2,174,714,682,942,165.75/71,959,529.10
  6. Step 6: Final answer
    x = 30,221,357.90

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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.