Home / 151,494,570.82-209,062,413.23-81,879,951.70

Finding the Fourth Proportional to 151,494,570.82, 209,062,413.23 and 81,879,951.70

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Solution

The fourth proportional to 151,494,570.82, 209,062,413.23 and 81,879,951.70 is: 112,994,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,494,570.82 : 209,062,413.23 = 81,879,951.70 : x
  2. Step 2: Convert to fraction form
    151,494,570.82/209,062,413.23 = 81,879,951.70/x
  3. Step 3: Cross multiply
    151,494,570.82x = 209,062,413.23 × 81,879,951.70
  4. Step 4: Simplify right side
    151,494,570.82x = 17,118,020,297,557,840
  5. Step 5: Solve for x
    x = 17,118,020,297,557,840/151,494,570.82
  6. Step 6: Final answer
    x = 112,994,282.27

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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.