Home / 986,389,241.56-1,361,218,760.82-540,342,813.96

Finding the Fourth Proportional to 986,389,241.56, 1,361,218,760.82 and 540,342,813.96

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Solution

The fourth proportional to 986,389,241.56, 1,361,218,760.82 and 540,342,813.96 is: 745,673,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,389,241.56 : 1,361,218,760.82 = 540,342,813.96 : x
  2. Step 2: Convert to fraction form
    986,389,241.56/1,361,218,760.82 = 540,342,813.96/x
  3. Step 3: Cross multiply
    986,389,241.56x = 1,361,218,760.82 × 540,342,813.96
  4. Step 4: Simplify right side
    986,389,241.56x = 735,524,775,636,622,976
  5. Step 5: Solve for x
    x = 735,524,775,636,622,976/986,389,241.56
  6. Step 6: Final answer
    x = 745,673,963.83

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1.5x scale

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.