Home / 311,426,413.32-429,565,948.84-199,740,350.48

Finding the Fourth Proportional to 311,426,413.32, 429,565,948.84 and 199,740,350.48

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Solution

The fourth proportional to 311,426,413.32, 429,565,948.84 and 199,740,350.48 is: 275,511,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,426,413.32 : 429,565,948.84 = 199,740,350.48 : x
  2. Step 2: Convert to fraction form
    311,426,413.32/429,565,948.84 = 199,740,350.48/x
  3. Step 3: Cross multiply
    311,426,413.32x = 429,565,948.84 × 199,740,350.48
  4. Step 4: Simplify right side
    311,426,413.32x = 85,801,653,174,187,168
  5. Step 5: Solve for x
    x = 85,801,653,174,187,168/311,426,413.32
  6. Step 6: Final answer
    x = 275,511,804.73

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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.