Home / 18,439,640.40-27,680,455.80-10,870,870.80

Finding the Fourth Proportional to 18,439,640.40, 27,680,455.80 and 10,870,870.80

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Solution

The fourth proportional to 18,439,640.40, 27,680,455.80 and 10,870,870.80 is: 16,318,683.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439,640.40 : 27,680,455.80 = 10,870,870.80 : x
  2. Step 2: Convert to fraction form
    18,439,640.40/27,680,455.80 = 10,870,870.80/x
  3. Step 3: Cross multiply
    18,439,640.40x = 27,680,455.80 × 10,870,870.80
  4. Step 4: Simplify right side
    18,439,640.40x = 300,910,658,686,910.69
  5. Step 5: Solve for x
    x = 300,910,658,686,910.69/18,439,640.40
  6. Step 6: Final answer
    x = 16,318,683.67

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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.