Home / 18,771,388,601.55-25,906,737,034.75-11,150,464,612.78

Finding the Fourth Proportional to 18,771,388,601.55, 25,906,737,034.75 and 11,150,464,612.78

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Solution

The fourth proportional to 18,771,388,601.55, 25,906,737,034.75 and 11,150,464,612.78 is: 15,388,960,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771,388,601.55 : 25,906,737,034.75 = 11,150,464,612.78 : x
  2. Step 2: Convert to fraction form
    18,771,388,601.55/25,906,737,034.75 = 11,150,464,612.78/x
  3. Step 3: Cross multiply
    18,771,388,601.55x = 25,906,737,034.75 × 11,150,464,612.78
  4. Step 4: Simplify right side
    18,771,388,601.55x = 288,872,154,538,576,969,728
  5. Step 5: Solve for x
    x = 288,872,154,538,576,969,728/18,771,388,601.55
  6. Step 6: Final answer
    x = 15,388,960,330.55

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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.