Home / 18,789,615.63-28,188,901.26-6,660,139.14

Finding the Fourth Proportional to 18,789,615.63, 28,188,901.26 and 6,660,139.14

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Solution

The fourth proportional to 18,789,615.63, 28,188,901.26 and 6,660,139.14 is: 9,991,795.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789,615.63 : 28,188,901.26 = 6,660,139.14 : x
  2. Step 2: Convert to fraction form
    18,789,615.63/28,188,901.26 = 6,660,139.14/x
  3. Step 3: Cross multiply
    18,789,615.63x = 28,188,901.26 × 6,660,139.14
  4. Step 4: Simplify right side
    18,789,615.63x = 187,742,004,595,321.31
  5. Step 5: Solve for x
    x = 187,742,004,595,321.31/18,789,615.63
  6. Step 6: Final answer
    x = 9,991,795.91

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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.