Home / 21,120,843.42-29,159,927.91-14,516,803.26

Finding the Fourth Proportional to 21,120,843.42, 29,159,927.91 and 14,516,803.26

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Solution

The fourth proportional to 21,120,843.42, 29,159,927.91 and 14,516,803.26 is: 20,042,236.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120,843.42 : 29,159,927.91 = 14,516,803.26 : x
  2. Step 2: Convert to fraction form
    21,120,843.42/29,159,927.91 = 14,516,803.26/x
  3. Step 3: Cross multiply
    21,120,843.42x = 29,159,927.91 × 14,516,803.26
  4. Step 4: Simplify right side
    21,120,843.42x = 423,308,936,545,253
  5. Step 5: Solve for x
    x = 423,308,936,545,253/21,120,843.42
  6. Step 6: Final answer
    x = 20,042,236.39

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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.