Home / 808,393,755.60-1,212,590,633.40-550,113,429.60

Finding the Fourth Proportional to 808,393,755.60, 1,212,590,633.40 and 550,113,429.60

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Solution

The fourth proportional to 808,393,755.60, 1,212,590,633.40 and 550,113,429.60 is: 825,170,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,393,755.60 : 1,212,590,633.40 = 550,113,429.60 : x
  2. Step 2: Convert to fraction form
    808,393,755.60/1,212,590,633.40 = 550,113,429.60/x
  3. Step 3: Cross multiply
    808,393,755.60x = 1,212,590,633.40 × 550,113,429.60
  4. Step 4: Simplify right side
    808,393,755.60x = 667,062,392,040,510,336
  5. Step 5: Solve for x
    x = 667,062,392,040,510,336/808,393,755.60
  6. Step 6: Final answer
    x = 825,170,144.40

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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.