Home / 205,707,536,062.79-308,601,040,679.82-78,212,314,790.40

Finding the Fourth Proportional to 205,707,536,062.79, 308,601,040,679.82 and 78,212,314,790.40

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Solution

The fourth proportional to 205,707,536,062.79, 308,601,040,679.82 and 78,212,314,790.40 is: 117,333,580,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,707,536,062.79 : 308,601,040,679.82 = 78,212,314,790.40 : x
  2. Step 2: Convert to fraction form
    205,707,536,062.79/308,601,040,679.82 = 78,212,314,790.40/x
  3. Step 3: Cross multiply
    205,707,536,062.79x = 308,601,040,679.82 × 78,212,314,790.40
  4. Step 4: Simplify right side
    205,707,536,062.79x = 24,136,401,738,294,194,339,840
  5. Step 5: Solve for x
    x = 24,136,401,738,294,194,339,840/205,707,536,062.79
  6. Step 6: Final answer
    x = 117,333,580,481.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.