Home / 81,120,783,421.96-121,595,293,823.56-27,286,670,170.64

Finding the Fourth Proportional to 81,120,783,421.96, 121,595,293,823.56 and 27,286,670,170.64

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Solution

The fourth proportional to 81,120,783,421.96, 121,595,293,823.56 and 27,286,670,170.64 is: 40,901,117,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,120,783,421.96 : 121,595,293,823.56 = 27,286,670,170.64 : x
  2. Step 2: Convert to fraction form
    81,120,783,421.96/121,595,293,823.56 = 27,286,670,170.64/x
  3. Step 3: Cross multiply
    81,120,783,421.96x = 121,595,293,823.56 × 27,286,670,170.64
  4. Step 4: Simplify right side
    81,120,783,421.96x = 3,317,930,676,865,783,562,240
  5. Step 5: Solve for x
    x = 3,317,930,676,865,783,562,240/81,120,783,421.96
  6. Step 6: Final answer
    x = 40,901,117,283.44

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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.