Home / 18,148,069.80-27,222,104.70-9,078,143.40

Finding the Fourth Proportional to 18,148,069.80, 27,222,104.70 and 9,078,143.40

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Solution

The fourth proportional to 18,148,069.80, 27,222,104.70 and 9,078,143.40 is: 13,617,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148,069.80 : 27,222,104.70 = 9,078,143.40 : x
  2. Step 2: Convert to fraction form
    18,148,069.80/27,222,104.70 = 9,078,143.40/x
  3. Step 3: Cross multiply
    18,148,069.80x = 27,222,104.70 × 9,078,143.40
  4. Step 4: Simplify right side
    18,148,069.80x = 247,126,170,116,413.97
  5. Step 5: Solve for x
    x = 247,126,170,116,413.97/18,148,069.80
  6. Step 6: Final answer
    x = 13,617,215.10

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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.