Home / 69,082,413.40-103,623,620.10-21,207,136.60

Finding the Fourth Proportional to 69,082,413.40, 103,623,620.10 and 21,207,136.60

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Solution

The fourth proportional to 69,082,413.40, 103,623,620.10 and 21,207,136.60 is: 31,810,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,082,413.40 : 103,623,620.10 = 21,207,136.60 : x
  2. Step 2: Convert to fraction form
    69,082,413.40/103,623,620.10 = 21,207,136.60/x
  3. Step 3: Cross multiply
    69,082,413.40x = 103,623,620.10 × 21,207,136.60
  4. Step 4: Simplify right side
    69,082,413.40x = 2,197,560,266,447,205.75
  5. Step 5: Solve for x
    x = 2,197,560,266,447,205.75/69,082,413.40
  6. Step 6: Final answer
    x = 31,810,704.90

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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.