Home / 71,511,508.59-107,268,247.02-20,393,532.87

Finding the Fourth Proportional to 71,511,508.59, 107,268,247.02 and 20,393,532.87

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Solution

The fourth proportional to 71,511,508.59, 107,268,247.02 and 20,393,532.87 is: 30,590,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511,508.59 : 107,268,247.02 = 20,393,532.87 : x
  2. Step 2: Convert to fraction form
    71,511,508.59/107,268,247.02 = 20,393,532.87/x
  3. Step 3: Cross multiply
    71,511,508.59x = 107,268,247.02 × 20,393,532.87
  4. Step 4: Simplify right side
    71,511,508.59x = 2,187,578,521,509,649.50
  5. Step 5: Solve for x
    x = 2,187,578,521,509,649.50/71,511,508.59
  6. Step 6: Final answer
    x = 30,590,579.96

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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.