Home / 856,458,166.18-1,181,912,269.22-485,180,197.56

Finding the Fourth Proportional to 856,458,166.18, 1,181,912,269.22 and 485,180,197.56

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Solution

The fourth proportional to 856,458,166.18, 1,181,912,269.22 and 485,180,197.56 is: 669,548,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,458,166.18 : 1,181,912,269.22 = 485,180,197.56 : x
  2. Step 2: Convert to fraction form
    856,458,166.18/1,181,912,269.22 = 485,180,197.56/x
  3. Step 3: Cross multiply
    856,458,166.18x = 1,181,912,269.22 × 485,180,197.56
  4. Step 4: Simplify right side
    856,458,166.18x = 573,440,428,278,747,520
  5. Step 5: Solve for x
    x = 573,440,428,278,747,520/856,458,166.18
  6. Step 6: Final answer
    x = 669,548,672.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.