Home / 12,491,982,808.80-18,737,284,493.20-9,133,994,912.16

Finding the Fourth Proportional to 12,491,982,808.80, 18,737,284,493.20 and 9,133,994,912.16

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Solution

The fourth proportional to 12,491,982,808.80, 18,737,284,493.20 and 9,133,994,912.16 is: 13,700,488,052.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,982,808.80 : 18,737,284,493.20 = 9,133,994,912.16 : x
  2. Step 2: Convert to fraction form
    12,491,982,808.80/18,737,284,493.20 = 9,133,994,912.16/x
  3. Step 3: Cross multiply
    12,491,982,808.80x = 18,737,284,493.20 × 9,133,994,912.16
  4. Step 4: Simplify right side
    12,491,982,808.80x = 171,146,261,228,583,256,064
  5. Step 5: Solve for x
    x = 171,146,261,228,583,256,064/12,491,982,808.80
  6. Step 6: Final answer
    x = 13,700,488,052.87

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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.