Home / 20,286,156.64-30,431,110.60-7,335,539.68

Finding the Fourth Proportional to 20,286,156.64, 30,431,110.60 and 7,335,539.68

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Solution

The fourth proportional to 20,286,156.64, 30,431,110.60 and 7,335,539.68 is: 11,003,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286,156.64 : 30,431,110.60 = 7,335,539.68 : x
  2. Step 2: Convert to fraction form
    20,286,156.64/30,431,110.60 = 7,335,539.68/x
  3. Step 3: Cross multiply
    20,286,156.64x = 30,431,110.60 × 7,335,539.68
  4. Step 4: Simplify right side
    20,286,156.64x = 223,228,619,312,768.62
  5. Step 5: Solve for x
    x = 223,228,619,312,768.62/20,286,156.64
  6. Step 6: Final answer
    x = 11,003,987.76

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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.