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Finding the Fourth Proportional to 409,452,506.40, 614,178,759.60 and 254,484,310.80

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Solution

The fourth proportional to 409,452,506.40, 614,178,759.60 and 254,484,310.80 is: 381,726,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,452,506.40 : 614,178,759.60 = 254,484,310.80 : x
  2. Step 2: Convert to fraction form
    409,452,506.40/614,178,759.60 = 254,484,310.80/x
  3. Step 3: Cross multiply
    409,452,506.40x = 614,178,759.60 × 254,484,310.80
  4. Step 4: Simplify right side
    409,452,506.40x = 156,298,858,344,804,896
  5. Step 5: Solve for x
    x = 156,298,858,344,804,896/409,452,506.40
  6. Step 6: Final answer
    x = 381,726,466.20

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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.