Home / 21,481,897.06-29,645,659.52-13,226,721.80

Finding the Fourth Proportional to 21,481,897.06, 29,645,659.52 and 13,226,721.80

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Solution

The fourth proportional to 21,481,897.06, 29,645,659.52 and 13,226,721.80 is: 18,253,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481,897.06 : 29,645,659.52 = 13,226,721.80 : x
  2. Step 2: Convert to fraction form
    21,481,897.06/29,645,659.52 = 13,226,721.80/x
  3. Step 3: Cross multiply
    21,481,897.06x = 29,645,659.52 × 13,226,721.80
  4. Step 4: Simplify right side
    21,481,897.06x = 392,114,891,048,561.56
  5. Step 5: Solve for x
    x = 392,114,891,048,561.56/21,481,897.06
  6. Step 6: Final answer
    x = 18,253,271.11

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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.