Home / 808,218,005.60-1,212,327,008.40-262,959,539.60

Finding the Fourth Proportional to 808,218,005.60, 1,212,327,008.40 and 262,959,539.60

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Solution

The fourth proportional to 808,218,005.60, 1,212,327,008.40 and 262,959,539.60 is: 394,439,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,218,005.60 : 1,212,327,008.40 = 262,959,539.60 : x
  2. Step 2: Convert to fraction form
    808,218,005.60/1,212,327,008.40 = 262,959,539.60/x
  3. Step 3: Cross multiply
    808,218,005.60x = 1,212,327,008.40 × 262,959,539.60
  4. Step 4: Simplify right side
    808,218,005.60x = 318,792,951,973,509,376
  5. Step 5: Solve for x
    x = 318,792,951,973,509,376/808,218,005.60
  6. Step 6: Final answer
    x = 394,439,309.40

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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.