Home / 18,393,991,847.55-25,383,704,852.39-9,935,815,843.17

Finding the Fourth Proportional to 18,393,991,847.55, 25,383,704,852.39 and 9,935,815,843.17

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Solution

The fourth proportional to 18,393,991,847.55, 25,383,704,852.39 and 9,935,815,843.17 is: 13,711,423,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393,991,847.55 : 25,383,704,852.39 = 9,935,815,843.17 : x
  2. Step 2: Convert to fraction form
    18,393,991,847.55/25,383,704,852.39 = 9,935,815,843.17/x
  3. Step 3: Cross multiply
    18,393,991,847.55x = 25,383,704,852.39 × 9,935,815,843.17
  4. Step 4: Simplify right side
    18,393,991,847.55x = 252,207,816,830,688,034,816
  5. Step 5: Solve for x
    x = 252,207,816,830,688,034,816/18,393,991,847.55
  6. Step 6: Final answer
    x = 13,711,423,758.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.