Home / 13,028,022.45-17,980,826.85-7,228,672.47

Finding the Fourth Proportional to 13,028,022.45, 17,980,826.85 and 7,228,672.47

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Solution

The fourth proportional to 13,028,022.45, 17,980,826.85 and 7,228,672.47 is: 9,976,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028,022.45 : 17,980,826.85 = 7,228,672.47 : x
  2. Step 2: Convert to fraction form
    13,028,022.45/17,980,826.85 = 7,228,672.47/x
  3. Step 3: Cross multiply
    13,028,022.45x = 17,980,826.85 × 7,228,672.47
  4. Step 4: Simplify right side
    13,028,022.45x = 129,977,508,038,431.83
  5. Step 5: Solve for x
    x = 129,977,508,038,431.83/13,028,022.45
  6. Step 6: Final answer
    x = 9,976,764.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.