Home / 81,675,072.60-122,512,608.90-30,550,448.40

Finding the Fourth Proportional to 81,675,072.60, 122,512,608.90 and 30,550,448.40

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Solution

The fourth proportional to 81,675,072.60, 122,512,608.90 and 30,550,448.40 is: 45,825,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675,072.60 : 122,512,608.90 = 30,550,448.40 : x
  2. Step 2: Convert to fraction form
    81,675,072.60/122,512,608.90 = 30,550,448.40/x
  3. Step 3: Cross multiply
    81,675,072.60x = 122,512,608.90 × 30,550,448.40
  4. Step 4: Simplify right side
    81,675,072.60x = 3,742,815,136,548,831
  5. Step 5: Solve for x
    x = 3,742,815,136,548,831/81,675,072.60
  6. Step 6: Final answer
    x = 45,825,672.60

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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.