Home / 1,268,720,774.55-1,903,172,884.61-531,048,780.09

Finding the Fourth Proportional to 1,268,720,774.55, 1,903,172,884.61 and 531,048,780.09

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Solution

The fourth proportional to 1,268,720,774.55, 1,903,172,884.61 and 531,048,780.09 is: 796,611,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,720,774.55 : 1,903,172,884.61 = 531,048,780.09 : x
  2. Step 2: Convert to fraction form
    1,268,720,774.55/1,903,172,884.61 = 531,048,780.09/x
  3. Step 3: Cross multiply
    1,268,720,774.55x = 1,903,172,884.61 × 531,048,780.09
  4. Step 4: Simplify right side
    1,268,720,774.55x = 1,010,677,638,669,851,520
  5. Step 5: Solve for x
    x = 1,010,677,638,669,851,520/1,268,720,774.55
  6. Step 6: Final answer
    x = 796,611,562.56

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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.