Home / 18,386,198.30-25,371,075.98-11,320,669.55

Finding the Fourth Proportional to 18,386,198.30, 25,371,075.98 and 11,320,669.55

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Solution

The fourth proportional to 18,386,198.30, 25,371,075.98 and 11,320,669.55 is: 15,621,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386,198.30 : 25,371,075.98 = 11,320,669.55 : x
  2. Step 2: Convert to fraction form
    18,386,198.30/25,371,075.98 = 11,320,669.55/x
  3. Step 3: Cross multiply
    18,386,198.30x = 25,371,075.98 × 11,320,669.55
  4. Step 4: Simplify right side
    18,386,198.30x = 287,217,567,114,063.69
  5. Step 5: Solve for x
    x = 287,217,567,114,063.69/18,386,198.30
  6. Step 6: Final answer
    x = 15,621,367.86

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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.