Home / 75,704,413.78-113,557,521.80-21,113,677.85

Finding the Fourth Proportional to 75,704,413.78, 113,557,521.80 and 21,113,677.85

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Solution

The fourth proportional to 75,704,413.78, 113,557,521.80 and 21,113,677.85 is: 31,670,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,704,413.78 : 113,557,521.80 = 21,113,677.85 : x
  2. Step 2: Convert to fraction form
    75,704,413.78/113,557,521.80 = 21,113,677.85/x
  3. Step 3: Cross multiply
    75,704,413.78x = 113,557,521.80 × 21,113,677.85
  4. Step 4: Simplify right side
    75,704,413.78x = 2,397,616,932,729,552
  5. Step 5: Solve for x
    x = 2,397,616,932,729,552/75,704,413.78
  6. Step 6: Final answer
    x = 31,670,768.10

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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.