Home / 820,925,257.52-1,231,387,885.07-207,509,483.27

Finding the Fourth Proportional to 820,925,257.52, 1,231,387,885.07 and 207,509,483.27

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Solution

The fourth proportional to 820,925,257.52, 1,231,387,885.07 and 207,509,483.27 is: 311,264,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,925,257.52 : 1,231,387,885.07 = 207,509,483.27 : x
  2. Step 2: Convert to fraction form
    820,925,257.52/1,231,387,885.07 = 207,509,483.27/x
  3. Step 3: Cross multiply
    820,925,257.52x = 1,231,387,885.07 × 207,509,483.27
  4. Step 4: Simplify right side
    820,925,257.52x = 255,524,663,738,622,592
  5. Step 5: Solve for x
    x = 255,524,663,738,622,592/820,925,257.52
  6. Step 6: Final answer
    x = 311,264,224.60

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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.