Home / 956,672,406.64-1,320,207,910.19-516,639,258.64

Finding the Fourth Proportional to 956,672,406.64, 1,320,207,910.19 and 516,639,258.64

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Solution

The fourth proportional to 956,672,406.64, 1,320,207,910.19 and 516,639,258.64 is: 712,962,170.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,672,406.64 : 1,320,207,910.19 = 516,639,258.64 : x
  2. Step 2: Convert to fraction form
    956,672,406.64/1,320,207,910.19 = 516,639,258.64/x
  3. Step 3: Cross multiply
    956,672,406.64x = 1,320,207,910.19 × 516,639,258.64
  4. Step 4: Simplify right side
    956,672,406.64x = 682,071,235,964,836,096
  5. Step 5: Solve for x
    x = 682,071,235,964,836,096/956,672,406.64
  6. Step 6: Final answer
    x = 712,962,170.99

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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.