Home / 20,747,899.14-31,123,343.40-7,968,403.86

Finding the Fourth Proportional to 20,747,899.14, 31,123,343.40 and 7,968,403.86

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Solution

The fourth proportional to 20,747,899.14, 31,123,343.40 and 7,968,403.86 is: 11,953,179.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,899.14 : 31,123,343.40 = 7,968,403.86 : x
  2. Step 2: Convert to fraction form
    20,747,899.14/31,123,343.40 = 7,968,403.86/x
  3. Step 3: Cross multiply
    20,747,899.14x = 31,123,343.40 × 7,968,403.86
  4. Step 4: Simplify right side
    20,747,899.14x = 248,003,369,684,665.53
  5. Step 5: Solve for x
    x = 248,003,369,684,665.53/20,747,899.14
  6. Step 6: Final answer
    x = 11,953,179.84

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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.