Home / 78,485,218.20-117,769,817.70-33,051,605.40

Finding the Fourth Proportional to 78,485,218.20, 117,769,817.70 and 33,051,605.40

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Solution

The fourth proportional to 78,485,218.20, 117,769,817.70 and 33,051,605.40 is: 49,595,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,485,218.20 : 117,769,817.70 = 33,051,605.40 : x
  2. Step 2: Convert to fraction form
    78,485,218.20/117,769,817.70 = 33,051,605.40/x
  3. Step 3: Cross multiply
    78,485,218.20x = 117,769,817.70 × 33,051,605.40
  4. Step 4: Simplify right side
    78,485,218.20x = 3,892,481,542,650,335.50
  5. Step 5: Solve for x
    x = 3,892,481,542,650,335.50/78,485,218.20
  6. Step 6: Final answer
    x = 49,595,091.05

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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.