Home / 812,123,347.96-1,120,731,640.86-440,845,630.84

Finding the Fourth Proportional to 812,123,347.96, 1,120,731,640.86 and 440,845,630.84

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Solution

The fourth proportional to 812,123,347.96, 1,120,731,640.86 and 440,845,630.84 is: 608,367,741.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,123,347.96 : 1,120,731,640.86 = 440,845,630.84 : x
  2. Step 2: Convert to fraction form
    812,123,347.96/1,120,731,640.86 = 440,845,630.84/x
  3. Step 3: Cross multiply
    812,123,347.96x = 1,120,731,640.86 × 440,845,630.84
  4. Step 4: Simplify right side
    812,123,347.96x = 494,069,647,217,274,944
  5. Step 5: Solve for x
    x = 494,069,647,217,274,944/812,123,347.96
  6. Step 6: Final answer
    x = 608,367,741.75

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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.