Home / 28,743,005.40-43,146,000.90-17,972,467.80

Finding the Fourth Proportional to 28,743,005.40, 43,146,000.90 and 17,972,467.80

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Solution

The fourth proportional to 28,743,005.40, 43,146,000.90 and 17,972,467.80 is: 26,978,393.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743,005.40 : 43,146,000.90 = 17,972,467.80 : x
  2. Step 2: Convert to fraction form
    28,743,005.40/43,146,000.90 = 17,972,467.80/x
  3. Step 3: Cross multiply
    28,743,005.40x = 43,146,000.90 × 17,972,467.80
  4. Step 4: Simplify right side
    28,743,005.40x = 775,440,111,874,021
  5. Step 5: Solve for x
    x = 775,440,111,874,021/28,743,005.40
  6. Step 6: Final answer
    x = 26,978,393.56

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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.