Home / 820,925,330.46-1,231,387,994.34-207,509,556.48

Finding the Fourth Proportional to 820,925,330.46, 1,231,387,994.34 and 207,509,556.48

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Solution

The fourth proportional to 820,925,330.46, 1,231,387,994.34 and 207,509,556.48 is: 311,264,334.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,925,330.46 : 1,231,387,994.34 = 207,509,556.48 : x
  2. Step 2: Convert to fraction form
    820,925,330.46/1,231,387,994.34 = 207,509,556.48/x
  3. Step 3: Cross multiply
    820,925,330.46x = 1,231,387,994.34 × 207,509,556.48
  4. Step 4: Simplify right side
    820,925,330.46x = 255,524,776,560,290,112
  5. Step 5: Solve for x
    x = 255,524,776,560,290,112/820,925,330.46
  6. Step 6: Final answer
    x = 311,264,334.38

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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.