Home / 15,305,361.61-21,121,399.41-8,429,843.67

Finding the Fourth Proportional to 15,305,361.61, 21,121,399.41 and 8,429,843.67

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Solution

The fourth proportional to 15,305,361.61, 21,121,399.41 and 8,429,843.67 is: 11,633,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,361.61 : 21,121,399.41 = 8,429,843.67 : x
  2. Step 2: Convert to fraction form
    15,305,361.61/21,121,399.41 = 8,429,843.67/x
  3. Step 3: Cross multiply
    15,305,361.61x = 21,121,399.41 × 8,429,843.67
  4. Step 4: Simplify right side
    15,305,361.61x = 178,050,095,075,781.03
  5. Step 5: Solve for x
    x = 178,050,095,075,781.03/15,305,361.61
  6. Step 6: Final answer
    x = 11,633,184.48

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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.