Home / 484,511,805.20-726,767,707.80-280,438,461.20

Finding the Fourth Proportional to 484,511,805.20, 726,767,707.80 and 280,438,461.20

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Solution

The fourth proportional to 484,511,805.20, 726,767,707.80 and 280,438,461.20 is: 420,657,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,511,805.20 : 726,767,707.80 = 280,438,461.20 : x
  2. Step 2: Convert to fraction form
    484,511,805.20/726,767,707.80 = 280,438,461.20/x
  3. Step 3: Cross multiply
    484,511,805.20x = 726,767,707.80 × 280,438,461.20
  4. Step 4: Simplify right side
    484,511,805.20x = 203,813,617,625,283,200
  5. Step 5: Solve for x
    x = 203,813,617,625,283,200/484,511,805.20
  6. Step 6: Final answer
    x = 420,657,691.80

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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.