Home / 20,183,256,013.80-30,274,884,020.70-11,918,285,581.80

Finding the Fourth Proportional to 20,183,256,013.80, 30,274,884,020.70 and 11,918,285,581.80

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Solution

The fourth proportional to 20,183,256,013.80, 30,274,884,020.70 and 11,918,285,581.80 is: 17,877,428,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183,256,013.80 : 30,274,884,020.70 = 11,918,285,581.80 : x
  2. Step 2: Convert to fraction form
    20,183,256,013.80/30,274,884,020.70 = 11,918,285,581.80/x
  3. Step 3: Cross multiply
    20,183,256,013.80x = 30,274,884,020.70 × 11,918,285,581.80
  4. Step 4: Simplify right side
    20,183,256,013.80x = 360,824,713,714,575,998,976
  5. Step 5: Solve for x
    x = 360,824,713,714,575,998,976/20,183,256,013.80
  6. Step 6: Final answer
    x = 17,877,428,372.70

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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.