Home / 260,760,387,736.80-391,140,581,605.20-189,681,642,021.60

Finding the Fourth Proportional to 260,760,387,736.80, 391,140,581,605.20 and 189,681,642,021.60

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Solution

The fourth proportional to 260,760,387,736.80, 391,140,581,605.20 and 189,681,642,021.60 is: 284,522,463,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,760,387,736.80 : 391,140,581,605.20 = 189,681,642,021.60 : x
  2. Step 2: Convert to fraction form
    260,760,387,736.80/391,140,581,605.20 = 189,681,642,021.60/x
  3. Step 3: Cross multiply
    260,760,387,736.80x = 391,140,581,605.20 × 189,681,642,021.60
  4. Step 4: Simplify right side
    260,760,387,736.80x = 74,192,187,780,157,971,365,888
  5. Step 5: Solve for x
    x = 74,192,187,780,157,971,365,888/260,760,387,736.80
  6. Step 6: Final answer
    x = 284,522,463,032.40

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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.