Home / 808,218,007.10-1,212,327,010.65-262,959,541.10

Finding the Fourth Proportional to 808,218,007.10, 1,212,327,010.65 and 262,959,541.10

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Solution

The fourth proportional to 808,218,007.10, 1,212,327,010.65 and 262,959,541.10 is: 394,439,311.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,218,007.10 : 1,212,327,010.65 = 262,959,541.10 : x
  2. Step 2: Convert to fraction form
    808,218,007.10/1,212,327,010.65 = 262,959,541.10/x
  3. Step 3: Cross multiply
    808,218,007.10x = 1,212,327,010.65 × 262,959,541.10
  4. Step 4: Simplify right side
    808,218,007.10x = 318,792,954,383,658,816
  5. Step 5: Solve for x
    x = 318,792,954,383,658,816/808,218,007.10
  6. Step 6: Final answer
    x = 394,439,311.65

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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.