Home / 821,177,399.50-1,132,945,808.40-468,500,029.90

Finding the Fourth Proportional to 821,177,399.50, 1,132,945,808.40 and 468,500,029.90

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Solution

The fourth proportional to 821,177,399.50, 1,132,945,808.40 and 468,500,029.90 is: 646,370,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,177,399.50 : 1,132,945,808.40 = 468,500,029.90 : x
  2. Step 2: Convert to fraction form
    821,177,399.50/1,132,945,808.40 = 468,500,029.90/x
  3. Step 3: Cross multiply
    821,177,399.50x = 1,132,945,808.40 × 468,500,029.90
  4. Step 4: Simplify right side
    821,177,399.50x = 530,785,145,110,479,680
  5. Step 5: Solve for x
    x = 530,785,145,110,479,680/821,177,399.50
  6. Step 6: Final answer
    x = 646,370,863.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.