Home / 20,864,413.18-31,274,531.04-7,018,190.56

Finding the Fourth Proportional to 20,864,413.18, 31,274,531.04 and 7,018,190.56

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Solution

The fourth proportional to 20,864,413.18, 31,274,531.04 and 7,018,190.56 is: 10,519,855.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,413.18 : 31,274,531.04 = 7,018,190.56 : x
  2. Step 2: Convert to fraction form
    20,864,413.18/31,274,531.04 = 7,018,190.56/x
  3. Step 3: Cross multiply
    20,864,413.18x = 31,274,531.04 × 7,018,190.56
  4. Step 4: Simplify right side
    20,864,413.18x = 219,490,618,513,354.97
  5. Step 5: Solve for x
    x = 219,490,618,513,354.97/20,864,413.18
  6. Step 6: Final answer
    x = 10,519,855.82

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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.