Home / 399,434,246.12-551,171,520.95-220,794,003.05

Finding the Fourth Proportional to 399,434,246.12, 551,171,520.95 and 220,794,003.05

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Solution

The fourth proportional to 399,434,246.12, 551,171,520.95 and 220,794,003.05 is: 304,669,335.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,434,246.12 : 551,171,520.95 = 220,794,003.05 : x
  2. Step 2: Convert to fraction form
    399,434,246.12/551,171,520.95 = 220,794,003.05/x
  3. Step 3: Cross multiply
    399,434,246.12x = 551,171,520.95 × 220,794,003.05
  4. Step 4: Simplify right side
    399,434,246.12x = 121,695,366,473,847,616
  5. Step 5: Solve for x
    x = 121,695,366,473,847,616/399,434,246.12
  6. Step 6: Final answer
    x = 304,669,335.83

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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.