Home / 107,978,763.60-161,968,145.40-47,394,489.60

Finding the Fourth Proportional to 107,978,763.60, 161,968,145.40 and 47,394,489.60

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Solution

The fourth proportional to 107,978,763.60, 161,968,145.40 and 47,394,489.60 is: 71,091,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,978,763.60 : 161,968,145.40 = 47,394,489.60 : x
  2. Step 2: Convert to fraction form
    107,978,763.60/161,968,145.40 = 47,394,489.60/x
  3. Step 3: Cross multiply
    107,978,763.60x = 161,968,145.40 × 47,394,489.60
  4. Step 4: Simplify right side
    107,978,763.60x = 7,676,397,582,691,588
  5. Step 5: Solve for x
    x = 7,676,397,582,691,588/107,978,763.60
  6. Step 6: Final answer
    x = 71,091,734.40

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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.