Home / 891,344,311.43-1,230,007,133.85-494,841,763.31

Finding the Fourth Proportional to 891,344,311.43, 1,230,007,133.85 and 494,841,763.31

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Solution

The fourth proportional to 891,344,311.43, 1,230,007,133.85 and 494,841,763.31 is: 682,854,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,344,311.43 : 1,230,007,133.85 = 494,841,763.31 : x
  2. Step 2: Convert to fraction form
    891,344,311.43/1,230,007,133.85 = 494,841,763.31/x
  3. Step 3: Cross multiply
    891,344,311.43x = 1,230,007,133.85 × 494,841,763.31
  4. Step 4: Simplify right side
    891,344,311.43x = 608,658,898,998,213,120
  5. Step 5: Solve for x
    x = 608,658,898,998,213,120/891,344,311.43
  6. Step 6: Final answer
    x = 682,854,976.68

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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.