Home / 475,488,015.20-713,232,022.80-398,960,511.20

Finding the Fourth Proportional to 475,488,015.20, 713,232,022.80 and 398,960,511.20

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Solution

The fourth proportional to 475,488,015.20, 713,232,022.80 and 398,960,511.20 is: 598,440,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,488,015.20 : 713,232,022.80 = 398,960,511.20 : x
  2. Step 2: Convert to fraction form
    475,488,015.20/713,232,022.80 = 398,960,511.20/x
  3. Step 3: Cross multiply
    475,488,015.20x = 713,232,022.80 × 398,960,511.20
  4. Step 4: Simplify right side
    475,488,015.20x = 284,551,412,420,498,016
  5. Step 5: Solve for x
    x = 284,551,412,420,498,016/475,488,015.20
  6. Step 6: Final answer
    x = 598,440,766.80

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1.5x scale

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.