Home / 2,166,926,038.80-2,990,542,361.31-1,227,295,835.52

Finding the Fourth Proportional to 2,166,926,038.80, 2,990,542,361.31 and 1,227,295,835.52

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Solution

The fourth proportional to 2,166,926,038.80, 2,990,542,361.31 and 1,227,295,835.52 is: 1,693,772,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,926,038.80 : 2,990,542,361.31 = 1,227,295,835.52 : x
  2. Step 2: Convert to fraction form
    2,166,926,038.80/2,990,542,361.31 = 1,227,295,835.52/x
  3. Step 3: Cross multiply
    2,166,926,038.80x = 2,990,542,361.31 × 1,227,295,835.52
  4. Step 4: Simplify right side
    2,166,926,038.80x = 3,670,280,185,981,910,016
  5. Step 5: Solve for x
    x = 3,670,280,185,981,910,016/2,166,926,038.80
  6. Step 6: Final answer
    x = 1,693,772,708.56

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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.