Home / 12,131,729,721.80-18,199,610,121.90-4,770,980,563.40

Finding the Fourth Proportional to 12,131,729,721.80, 18,199,610,121.90 and 4,770,980,563.40

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Solution

The fourth proportional to 12,131,729,721.80, 18,199,610,121.90 and 4,770,980,563.40 is: 7,157,263,485.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,729,721.80 : 18,199,610,121.90 = 4,770,980,563.40 : x
  2. Step 2: Convert to fraction form
    12,131,729,721.80/18,199,610,121.90 = 4,770,980,563.40/x
  3. Step 3: Cross multiply
    12,131,729,721.80x = 18,199,610,121.90 × 4,770,980,563.40
  4. Step 4: Simplify right side
    12,131,729,721.80x = 86,829,986,153,042,804,736
  5. Step 5: Solve for x
    x = 86,829,986,153,042,804,736/12,131,729,721.80
  6. Step 6: Final answer
    x = 7,157,263,485.44

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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.