Home / 165,639,110.89-248,431,716.00-78,200,458.86

Finding the Fourth Proportional to 165,639,110.89, 248,431,716.00 and 78,200,458.86

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Solution

The fourth proportional to 165,639,110.89, 248,431,716.00 and 78,200,458.86 is: 117,287,964.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,639,110.89 : 248,431,716.00 = 78,200,458.86 : x
  2. Step 2: Convert to fraction form
    165,639,110.89/248,431,716.00 = 78,200,458.86/x
  3. Step 3: Cross multiply
    165,639,110.89x = 248,431,716.00 × 78,200,458.86
  4. Step 4: Simplify right side
    165,639,110.89x = 19,427,474,186,186,200
  5. Step 5: Solve for x
    x = 19,427,474,186,186,200/165,639,110.89
  6. Step 6: Final answer
    x = 117,287,964.67

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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.