Home / 18,355,405.80-27,540,981.90-9,379,957.80

Finding the Fourth Proportional to 18,355,405.80, 27,540,981.90 and 9,379,957.80

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Solution

The fourth proportional to 18,355,405.80, 27,540,981.90 and 9,379,957.80 is: 14,073,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355,405.80 : 27,540,981.90 = 9,379,957.80 : x
  2. Step 2: Convert to fraction form
    18,355,405.80/27,540,981.90 = 9,379,957.80/x
  3. Step 3: Cross multiply
    18,355,405.80x = 27,540,981.90 × 9,379,957.80
  4. Step 4: Simplify right side
    18,355,405.80x = 258,333,247,992,563.81
  5. Step 5: Solve for x
    x = 258,333,247,992,563.81/18,355,405.80
  6. Step 6: Final answer
    x = 14,073,960.05

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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.