Home / 492,026,612.10-738,039,918.15-287,449,383.30

Finding the Fourth Proportional to 492,026,612.10, 738,039,918.15 and 287,449,383.30

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Solution

The fourth proportional to 492,026,612.10, 738,039,918.15 and 287,449,383.30 is: 431,174,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,026,612.10 : 738,039,918.15 = 287,449,383.30 : x
  2. Step 2: Convert to fraction form
    492,026,612.10/738,039,918.15 = 287,449,383.30/x
  3. Step 3: Cross multiply
    492,026,612.10x = 738,039,918.15 × 287,449,383.30
  4. Step 4: Simplify right side
    492,026,612.10x = 212,149,119,322,999,968
  5. Step 5: Solve for x
    x = 212,149,119,322,999,968/492,026,612.10
  6. Step 6: Final answer
    x = 431,174,074.95

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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.