Home / 863,154,913.78-1,191,151,540.61-481,672,948.87

Finding the Fourth Proportional to 863,154,913.78, 1,191,151,540.61 and 481,672,948.87

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Solution

The fourth proportional to 863,154,913.78, 1,191,151,540.61 and 481,672,948.87 is: 664,707,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,154,913.78 : 1,191,151,540.61 = 481,672,948.87 : x
  2. Step 2: Convert to fraction form
    863,154,913.78/1,191,151,540.61 = 481,672,948.87/x
  3. Step 3: Cross multiply
    863,154,913.78x = 1,191,151,540.61 × 481,672,948.87
  4. Step 4: Simplify right side
    863,154,913.78x = 573,745,475,117,524,992
  5. Step 5: Solve for x
    x = 573,745,475,117,524,992/863,154,913.78
  6. Step 6: Final answer
    x = 664,707,419.21

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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.