Home / 18,971,990.10-28,453,725.97-8,727,010.47

Finding the Fourth Proportional to 18,971,990.10, 28,453,725.97 and 8,727,010.47

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Solution

The fourth proportional to 18,971,990.10, 28,453,725.97 and 8,727,010.47 is: 13,088,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971,990.10 : 28,453,725.97 = 8,727,010.47 : x
  2. Step 2: Convert to fraction form
    18,971,990.10/28,453,725.97 = 8,727,010.47/x
  3. Step 3: Cross multiply
    18,971,990.10x = 28,453,725.97 × 8,727,010.47
  4. Step 4: Simplify right side
    18,971,990.10x = 248,315,964,428,883.41
  5. Step 5: Solve for x
    x = 248,315,964,428,883.41/18,971,990.10
  6. Step 6: Final answer
    x = 13,088,556.50

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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.