Home / 168,205,131.60-252,354,936.60-81,946,352.40

Finding the Fourth Proportional to 168,205,131.60, 252,354,936.60 and 81,946,352.40

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Solution

The fourth proportional to 168,205,131.60, 252,354,936.60 and 81,946,352.40 is: 122,942,542.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,205,131.60 : 252,354,936.60 = 81,946,352.40 : x
  2. Step 2: Convert to fraction form
    168,205,131.60/252,354,936.60 = 81,946,352.40/x
  3. Step 3: Cross multiply
    168,205,131.60x = 252,354,936.60 × 81,946,352.40
  4. Step 4: Simplify right side
    168,205,131.60x = 20,679,566,564,503,260
  5. Step 5: Solve for x
    x = 20,679,566,564,503,260/168,205,131.60
  6. Step 6: Final answer
    x = 122,942,542.64

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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.