Home / 268,394,687.82-402,544,782.81-71,660,541.60

Finding the Fourth Proportional to 268,394,687.82, 402,544,782.81 and 71,660,541.60

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Solution

The fourth proportional to 268,394,687.82, 402,544,782.81 and 71,660,541.60 is: 107,478,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,394,687.82 : 402,544,782.81 = 71,660,541.60 : x
  2. Step 2: Convert to fraction form
    268,394,687.82/402,544,782.81 = 71,660,541.60/x
  3. Step 3: Cross multiply
    268,394,687.82x = 402,544,782.81 × 71,660,541.60
  4. Step 4: Simplify right side
    268,394,687.82x = 28,846,577,154,418,968
  5. Step 5: Solve for x
    x = 28,846,577,154,418,968/268,394,687.82
  6. Step 6: Final answer
    x = 107,478,197.09

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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.