Home / 21,637,021.23-32,404,009.76-12,519,904.84

Finding the Fourth Proportional to 21,637,021.23, 32,404,009.76 and 12,519,904.84

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Solution

The fourth proportional to 21,637,021.23, 32,404,009.76 and 12,519,904.84 is: 18,750,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637,021.23 : 32,404,009.76 = 12,519,904.84 : x
  2. Step 2: Convert to fraction form
    21,637,021.23/32,404,009.76 = 12,519,904.84/x
  3. Step 3: Cross multiply
    21,637,021.23x = 32,404,009.76 × 12,519,904.84
  4. Step 4: Simplify right side
    21,637,021.23x = 405,695,118,579,921
  5. Step 5: Solve for x
    x = 405,695,118,579,921/21,637,021.23
  6. Step 6: Final answer
    x = 18,750,044.85

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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.