Home / 18,144,464.80-27,216,697.20-9,620,413.60

Finding the Fourth Proportional to 18,144,464.80, 27,216,697.20 and 9,620,413.60

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Solution

The fourth proportional to 18,144,464.80, 27,216,697.20 and 9,620,413.60 is: 14,430,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,464.80 : 27,216,697.20 = 9,620,413.60 : x
  2. Step 2: Convert to fraction form
    18,144,464.80/27,216,697.20 = 9,620,413.60/x
  3. Step 3: Cross multiply
    18,144,464.80x = 27,216,697.20 × 9,620,413.60
  4. Step 4: Simplify right side
    18,144,464.80x = 261,835,883,889,961.91
  5. Step 5: Solve for x
    x = 261,835,883,889,961.91/18,144,464.80
  6. Step 6: Final answer
    x = 14,430,620.40

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Similar ratio
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1.5x scale

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.