Home / 13,198,555.60-18,216,561.12-8,606,905.36

Finding the Fourth Proportional to 13,198,555.60, 18,216,561.12 and 8,606,905.36

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Solution

The fourth proportional to 13,198,555.60, 18,216,561.12 and 8,606,905.36 is: 11,879,195.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198,555.60 : 18,216,561.12 = 8,606,905.36 : x
  2. Step 2: Convert to fraction form
    13,198,555.60/18,216,561.12 = 8,606,905.36/x
  3. Step 3: Cross multiply
    13,198,555.60x = 18,216,561.12 × 8,606,905.36
  4. Step 4: Simplify right side
    13,198,555.60x = 156,788,217,544,495.59
  5. Step 5: Solve for x
    x = 156,788,217,544,495.59/13,198,555.60
  6. Step 6: Final answer
    x = 11,879,195.14

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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.