Home / 399,434,255.10-551,171,533.37-220,794,012.05

Finding the Fourth Proportional to 399,434,255.10, 551,171,533.37 and 220,794,012.05

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Solution

The fourth proportional to 399,434,255.10, 551,171,533.37 and 220,794,012.05 is: 304,669,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,434,255.10 : 551,171,533.37 = 220,794,012.05 : x
  2. Step 2: Convert to fraction form
    399,434,255.10/551,171,533.37 = 220,794,012.05/x
  3. Step 3: Cross multiply
    399,434,255.10x = 551,171,533.37 × 220,794,012.05
  4. Step 4: Simplify right side
    399,434,255.10x = 121,695,374,176,652,928
  5. Step 5: Solve for x
    x = 121,695,374,176,652,928/399,434,255.10
  6. Step 6: Final answer
    x = 304,669,348.27

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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.