Home / 69,979,939.44-104,957,945.40-18,850,000.84

Finding the Fourth Proportional to 69,979,939.44, 104,957,945.40 and 18,850,000.84

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Solution

The fourth proportional to 69,979,939.44, 104,957,945.40 and 18,850,000.84 is: 28,271,778.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,979,939.44 : 104,957,945.40 = 18,850,000.84 : x
  2. Step 2: Convert to fraction form
    69,979,939.44/104,957,945.40 = 18,850,000.84/x
  3. Step 3: Cross multiply
    69,979,939.44x = 104,957,945.40 × 18,850,000.84
  4. Step 4: Simplify right side
    69,979,939.44x = 1,978,457,358,954,674.25
  5. Step 5: Solve for x
    x = 1,978,457,358,954,674.25/69,979,939.44
  6. Step 6: Final answer
    x = 28,271,778.67

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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.