Home / 90,028,198.20-135,028,154.70-28,609,262.94

Finding the Fourth Proportional to 90,028,198.20, 135,028,154.70 and 28,609,262.94

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Solution

The fourth proportional to 90,028,198.20, 135,028,154.70 and 28,609,262.94 is: 42,909,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,028,198.20 : 135,028,154.70 = 28,609,262.94 : x
  2. Step 2: Convert to fraction form
    90,028,198.20/135,028,154.70 = 28,609,262.94/x
  3. Step 3: Cross multiply
    90,028,198.20x = 135,028,154.70 × 28,609,262.94
  4. Step 4: Simplify right side
    90,028,198.20x = 3,863,055,982,115,296.50
  5. Step 5: Solve for x
    x = 3,863,055,982,115,296.50/90,028,198.20
  6. Step 6: Final answer
    x = 42,909,400.16

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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.