Home / 21,651,611.89-29,878,975.43-11,728,305.18

Finding the Fourth Proportional to 21,651,611.89, 29,878,975.43 and 11,728,305.18

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Solution

The fourth proportional to 21,651,611.89, 29,878,975.43 and 11,728,305.18 is: 16,184,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651,611.89 : 29,878,975.43 = 11,728,305.18 : x
  2. Step 2: Convert to fraction form
    21,651,611.89/29,878,975.43 = 11,728,305.18/x
  3. Step 3: Cross multiply
    21,651,611.89x = 29,878,975.43 × 11,728,305.18
  4. Step 4: Simplify right side
    21,651,611.89x = 350,429,742,308,761.69
  5. Step 5: Solve for x
    x = 350,429,742,308,761.69/21,651,611.89
  6. Step 6: Final answer
    x = 16,184,926.28

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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.