Home / 287,475,338.20-431,213,007.30-205,846,000.60

Finding the Fourth Proportional to 287,475,338.20, 431,213,007.30 and 205,846,000.60

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Solution

The fourth proportional to 287,475,338.20, 431,213,007.30 and 205,846,000.60 is: 308,769,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,475,338.20 : 431,213,007.30 = 205,846,000.60 : x
  2. Step 2: Convert to fraction form
    287,475,338.20/431,213,007.30 = 205,846,000.60/x
  3. Step 3: Cross multiply
    287,475,338.20x = 431,213,007.30 × 205,846,000.60
  4. Step 4: Simplify right side
    287,475,338.20x = 88,763,472,959,403,600
  5. Step 5: Solve for x
    x = 88,763,472,959,403,600/287,475,338.20
  6. Step 6: Final answer
    x = 308,769,000.90

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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.