Home / 21,383,748.04-31,998,999.58-18,515,011.72

Finding the Fourth Proportional to 21,383,748.04, 31,998,999.58 and 18,515,011.72

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Solution

The fourth proportional to 21,383,748.04, 31,998,999.58 and 18,515,011.72 is: 27,706,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,748.04 : 31,998,999.58 = 18,515,011.72 : x
  2. Step 2: Convert to fraction form
    21,383,748.04/31,998,999.58 = 18,515,011.72/x
  3. Step 3: Cross multiply
    21,383,748.04x = 31,998,999.58 × 18,515,011.72
  4. Step 4: Simplify right side
    21,383,748.04x = 592,461,852,251,975
  5. Step 5: Solve for x
    x = 592,461,852,251,975/21,383,748.04
  6. Step 6: Final answer
    x = 27,706,174.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.