Home / 391,445,256.48-587,396,847.23-145,971,477.60

Finding the Fourth Proportional to 391,445,256.48, 587,396,847.23 and 145,971,477.60

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Solution

The fourth proportional to 391,445,256.48, 587,396,847.23 and 145,971,477.60 is: 219,042,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,445,256.48 : 587,396,847.23 = 145,971,477.60 : x
  2. Step 2: Convert to fraction form
    391,445,256.48/587,396,847.23 = 145,971,477.60/x
  3. Step 3: Cross multiply
    391,445,256.48x = 587,396,847.23 × 145,971,477.60
  4. Step 4: Simplify right side
    391,445,256.48x = 85,743,185,727,014,704
  5. Step 5: Solve for x
    x = 85,743,185,727,014,704/391,445,256.48
  6. Step 6: Final answer
    x = 219,042,597.42

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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.