Home / 18,738,663,658.72-28,112,647,673.04-9,299,737,400.56

Finding the Fourth Proportional to 18,738,663,658.72, 28,112,647,673.04 and 9,299,737,400.56

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Solution

The fourth proportional to 18,738,663,658.72, 28,112,647,673.04 and 9,299,737,400.56 is: 13,951,914,915.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,663,658.72 : 28,112,647,673.04 = 9,299,737,400.56 : x
  2. Step 2: Convert to fraction form
    18,738,663,658.72/28,112,647,673.04 = 9,299,737,400.56/x
  3. Step 3: Cross multiply
    18,738,663,658.72x = 28,112,647,673.04 × 9,299,737,400.56
  4. Step 4: Simplify right side
    18,738,663,658.72x = 261,440,240,993,736,130,560
  5. Step 5: Solve for x
    x = 261,440,240,993,736,130,560/18,738,663,658.72
  6. Step 6: Final answer
    x = 13,951,914,915.35

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1.5x scale

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.