Home / 869,876,720.30-1,304,815,080.45-482,893,193.90

Finding the Fourth Proportional to 869,876,720.30, 1,304,815,080.45 and 482,893,193.90

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Solution

The fourth proportional to 869,876,720.30, 1,304,815,080.45 and 482,893,193.90 is: 724,339,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,876,720.30 : 1,304,815,080.45 = 482,893,193.90 : x
  2. Step 2: Convert to fraction form
    869,876,720.30/1,304,815,080.45 = 482,893,193.90/x
  3. Step 3: Cross multiply
    869,876,720.30x = 1,304,815,080.45 × 482,893,193.90
  4. Step 4: Simplify right side
    869,876,720.30x = 630,086,321,647,385,984
  5. Step 5: Solve for x
    x = 630,086,321,647,385,984/869,876,720.30
  6. Step 6: Final answer
    x = 724,339,790.85

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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.