Home / 12,090,625.80-18,112,319.10-7,284,037.20

Finding the Fourth Proportional to 12,090,625.80, 18,112,319.10 and 7,284,037.20

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Solution

The fourth proportional to 12,090,625.80, 18,112,319.10 and 7,284,037.20 is: 10,911,826.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,625.80 : 18,112,319.10 = 7,284,037.20 : x
  2. Step 2: Convert to fraction form
    12,090,625.80/18,112,319.10 = 7,284,037.20/x
  3. Step 3: Cross multiply
    12,090,625.80x = 18,112,319.10 × 7,284,037.20
  4. Step 4: Simplify right side
    12,090,625.80x = 131,930,806,102,670.53
  5. Step 5: Solve for x
    x = 131,930,806,102,670.53/12,090,625.80
  6. Step 6: Final answer
    x = 10,911,826.09

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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.