Home / 20,747,934.02-31,123,395.84-7,968,438.74

Finding the Fourth Proportional to 20,747,934.02, 31,123,395.84 and 7,968,438.74

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Solution

The fourth proportional to 20,747,934.02, 31,123,395.84 and 7,968,438.74 is: 11,953,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,934.02 : 31,123,395.84 = 7,968,438.74 : x
  2. Step 2: Convert to fraction form
    20,747,934.02/31,123,395.84 = 7,968,438.74/x
  3. Step 3: Cross multiply
    20,747,934.02x = 31,123,395.84 × 7,968,438.74
  4. Step 4: Simplify right side
    20,747,934.02x = 248,004,873,131,810.84
  5. Step 5: Solve for x
    x = 248,004,873,131,810.84/20,747,934.02
  6. Step 6: Final answer
    x = 11,953,232.21

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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.