Home / 18,231,811,619.63-27,379,014,017.60-11,190,640,966.67

Finding the Fourth Proportional to 18,231,811,619.63, 27,379,014,017.60 and 11,190,640,966.67

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Solution

The fourth proportional to 18,231,811,619.63, 27,379,014,017.60 and 11,190,640,966.67 is: 16,805,171,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,811,619.63 : 27,379,014,017.60 = 11,190,640,966.67 : x
  2. Step 2: Convert to fraction form
    18,231,811,619.63/27,379,014,017.60 = 11,190,640,966.67/x
  3. Step 3: Cross multiply
    18,231,811,619.63x = 27,379,014,017.60 × 11,190,640,966.67
  4. Step 4: Simplify right side
    18,231,811,619.63x = 306,388,715,892,502,495,232
  5. Step 5: Solve for x
    x = 306,388,715,892,502,495,232/18,231,811,619.63
  6. Step 6: Final answer
    x = 16,805,171,218.57

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1.5x scale

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.