Home / 12,109,304,853.80-18,163,957,280.70-11,905,231,509.80

Finding the Fourth Proportional to 12,109,304,853.80, 18,163,957,280.70 and 11,905,231,509.80

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Solution

The fourth proportional to 12,109,304,853.80, 18,163,957,280.70 and 11,905,231,509.80 is: 17,857,847,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,304,853.80 : 18,163,957,280.70 = 11,905,231,509.80 : x
  2. Step 2: Convert to fraction form
    12,109,304,853.80/18,163,957,280.70 = 11,905,231,509.80/x
  3. Step 3: Cross multiply
    12,109,304,853.80x = 18,163,957,280.70 × 11,905,231,509.80
  4. Step 4: Simplify right side
    12,109,304,853.80x = 216,246,116,560,850,747,392
  5. Step 5: Solve for x
    x = 216,246,116,560,850,747,392/12,109,304,853.80
  6. Step 6: Final answer
    x = 17,857,847,264.70

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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.