Home / 18,753,096.60-28,129,644.90-9,174,619.80

Finding the Fourth Proportional to 18,753,096.60, 28,129,644.90 and 9,174,619.80

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Solution

The fourth proportional to 18,753,096.60, 28,129,644.90 and 9,174,619.80 is: 13,761,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753,096.60 : 28,129,644.90 = 9,174,619.80 : x
  2. Step 2: Convert to fraction form
    18,753,096.60/28,129,644.90 = 9,174,619.80/x
  3. Step 3: Cross multiply
    18,753,096.60x = 28,129,644.90 × 9,174,619.80
  4. Step 4: Simplify right side
    18,753,096.60x = 258,078,797,066,509.03
  5. Step 5: Solve for x
    x = 258,078,797,066,509.03/18,753,096.60
  6. Step 6: Final answer
    x = 13,761,929.70

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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.