Home / 90,992,013.60-136,488,021.04-30,407,739.68

Finding the Fourth Proportional to 90,992,013.60, 136,488,021.04 and 30,407,739.68

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Solution

The fourth proportional to 90,992,013.60, 136,488,021.04 and 30,407,739.68 is: 45,611,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,992,013.60 : 136,488,021.04 = 30,407,739.68 : x
  2. Step 2: Convert to fraction form
    90,992,013.60/136,488,021.04 = 30,407,739.68/x
  3. Step 3: Cross multiply
    90,992,013.60x = 136,488,021.04 × 30,407,739.68
  4. Step 4: Simplify right side
    90,992,013.60x = 4,150,292,213,222,682.50
  5. Step 5: Solve for x
    x = 4,150,292,213,222,682.50/90,992,013.60
  6. Step 6: Final answer
    x = 45,611,609.73

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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.