Home / 492,026,611.60-738,039,917.40-287,449,382.80

Finding the Fourth Proportional to 492,026,611.60, 738,039,917.40 and 287,449,382.80

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Solution

The fourth proportional to 492,026,611.60, 738,039,917.40 and 287,449,382.80 is: 431,174,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,026,611.60 : 738,039,917.40 = 287,449,382.80 : x
  2. Step 2: Convert to fraction form
    492,026,611.60/738,039,917.40 = 287,449,382.80/x
  3. Step 3: Cross multiply
    492,026,611.60x = 738,039,917.40 × 287,449,382.80
  4. Step 4: Simplify right side
    492,026,611.60x = 212,149,118,738,392,992
  5. Step 5: Solve for x
    x = 212,149,118,738,392,992/492,026,611.60
  6. Step 6: Final answer
    x = 431,174,074.20

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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.