Home / 878,500,509.93-1,317,850,759.10-318,526,049.78

Finding the Fourth Proportional to 878,500,509.93, 1,317,850,759.10 and 318,526,049.78

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Solution

The fourth proportional to 878,500,509.93, 1,317,850,759.10 and 318,526,049.78 is: 477,825,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,500,509.93 : 1,317,850,759.10 = 318,526,049.78 : x
  2. Step 2: Convert to fraction form
    878,500,509.93/1,317,850,759.10 = 318,526,049.78/x
  3. Step 3: Cross multiply
    878,500,509.93x = 1,317,850,759.10 × 318,526,049.78
  4. Step 4: Simplify right side
    878,500,509.93x = 419,769,796,494,443,072
  5. Step 5: Solve for x
    x = 419,769,796,494,443,072/878,500,509.93
  6. Step 6: Final answer
    x = 477,825,330.49

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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.