Home / 13,482,942.40-20,224,413.60-8,947,979.20

Finding the Fourth Proportional to 13,482,942.40, 20,224,413.60 and 8,947,979.20

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Solution

The fourth proportional to 13,482,942.40, 20,224,413.60 and 8,947,979.20 is: 13,421,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482,942.40 : 20,224,413.60 = 8,947,979.20 : x
  2. Step 2: Convert to fraction form
    13,482,942.40/20,224,413.60 = 8,947,979.20/x
  3. Step 3: Cross multiply
    13,482,942.40x = 20,224,413.60 × 8,947,979.20
  4. Step 4: Simplify right side
    13,482,942.40x = 180,967,632,224,997.12
  5. Step 5: Solve for x
    x = 180,967,632,224,997.12/13,482,942.40
  6. Step 6: Final answer
    x = 13,421,968.80

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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.