Home / 78,189,404.80-117,340,094.40-32,783,785.60

Finding the Fourth Proportional to 78,189,404.80, 117,340,094.40 and 32,783,785.60

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Solution

The fourth proportional to 78,189,404.80, 117,340,094.40 and 32,783,785.60 is: 49,199,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,189,404.80 : 117,340,094.40 = 32,783,785.60 : x
  2. Step 2: Convert to fraction form
    78,189,404.80/117,340,094.40 = 32,783,785.60/x
  3. Step 3: Cross multiply
    78,189,404.80x = 117,340,094.40 × 32,783,785.60
  4. Step 4: Simplify right side
    78,189,404.80x = 3,846,852,497,093,361
  5. Step 5: Solve for x
    x = 3,846,852,497,093,361/78,189,404.80
  6. Step 6: Final answer
    x = 49,199,153.09

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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.