Home / 20,194,759,918.80-30,292,139,878.20-11,929,789,486.80

Finding the Fourth Proportional to 20,194,759,918.80, 30,292,139,878.20 and 11,929,789,486.80

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Solution

The fourth proportional to 20,194,759,918.80, 30,292,139,878.20 and 11,929,789,486.80 is: 17,894,684,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194,759,918.80 : 30,292,139,878.20 = 11,929,789,486.80 : x
  2. Step 2: Convert to fraction form
    20,194,759,918.80/30,292,139,878.20 = 11,929,789,486.80/x
  3. Step 3: Cross multiply
    20,194,759,918.80x = 30,292,139,878.20 × 11,929,789,486.80
  4. Step 4: Simplify right side
    20,194,759,918.80x = 361,378,851,851,625,365,504
  5. Step 5: Solve for x
    x = 361,378,851,851,625,365,504/20,194,759,918.80
  6. Step 6: Final answer
    x = 17,894,684,230.20

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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.