Home / 21,680,075.09-29,915,745.77-12,388,246.11

Finding the Fourth Proportional to 21,680,075.09, 29,915,745.77 and 12,388,246.11

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Solution

The fourth proportional to 21,680,075.09, 29,915,745.77 and 12,388,246.11 is: 17,094,203.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680,075.09 : 29,915,745.77 = 12,388,246.11 : x
  2. Step 2: Convert to fraction form
    21,680,075.09/29,915,745.77 = 12,388,246.11/x
  3. Step 3: Cross multiply
    21,680,075.09x = 29,915,745.77 × 12,388,246.11
  4. Step 4: Simplify right side
    21,680,075.09x = 370,603,621,193,922.06
  5. Step 5: Solve for x
    x = 370,603,621,193,922.06/21,680,075.09
  6. Step 6: Final answer
    x = 17,094,203.76

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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.