Home / 20,155,418,879.80-30,233,128,319.70-18,220,501,247.80

Finding the Fourth Proportional to 20,155,418,879.80, 30,233,128,319.70 and 18,220,501,247.80

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Solution

The fourth proportional to 20,155,418,879.80, 30,233,128,319.70 and 18,220,501,247.80 is: 27,330,751,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,418,879.80 : 30,233,128,319.70 = 18,220,501,247.80 : x
  2. Step 2: Convert to fraction form
    20,155,418,879.80/30,233,128,319.70 = 18,220,501,247.80/x
  3. Step 3: Cross multiply
    20,155,418,879.80x = 30,233,128,319.70 × 18,220,501,247.80
  4. Step 4: Simplify right side
    20,155,418,879.80x = 550,862,752,273,991,335,936
  5. Step 5: Solve for x
    x = 550,862,752,273,991,335,936/20,155,418,879.80
  6. Step 6: Final answer
    x = 27,330,751,871.70

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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.