Home / 18,677,977.20-28,016,965.80-6,561,122.40

Finding the Fourth Proportional to 18,677,977.20, 28,016,965.80 and 6,561,122.40

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Solution

The fourth proportional to 18,677,977.20, 28,016,965.80 and 6,561,122.40 is: 9,841,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677,977.20 : 28,016,965.80 = 6,561,122.40 : x
  2. Step 2: Convert to fraction form
    18,677,977.20/28,016,965.80 = 6,561,122.40/x
  3. Step 3: Cross multiply
    18,677,977.20x = 28,016,965.80 × 6,561,122.40
  4. Step 4: Simplify right side
    18,677,977.20x = 183,822,741,890,413.94
  5. Step 5: Solve for x
    x = 183,822,741,890,413.94/18,677,977.20
  6. Step 6: Final answer
    x = 9,841,683.60

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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.