Home / 12,090,621.80-18,112,313.10-7,284,033.20

Finding the Fourth Proportional to 12,090,621.80, 18,112,313.10 and 7,284,033.20

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Solution

The fourth proportional to 12,090,621.80, 18,112,313.10 and 7,284,033.20 is: 10,911,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,621.80 : 18,112,313.10 = 7,284,033.20 : x
  2. Step 2: Convert to fraction form
    12,090,621.80/18,112,313.10 = 7,284,033.20/x
  3. Step 3: Cross multiply
    12,090,621.80x = 18,112,313.10 × 7,284,033.20
  4. Step 4: Simplify right side
    12,090,621.80x = 131,930,689,949,194.94
  5. Step 5: Solve for x
    x = 131,930,689,949,194.94/12,090,621.80
  6. Step 6: Final answer
    x = 10,911,820.10

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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.