Finding the Fourth Proportional to 775,372,420, 1,163,068,760.59 and 257,802,860.48
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Solution
The fourth proportional to 775,372,420, 1,163,068,760.59 and 257,802,860.48 is: 386,707,659.03
Step by Step Solution
- Step 1: Write the proportion equation
775,372,420 : 1,163,068,760.59 = 257,802,860.48 : x - Step 2: Convert to fraction form
775,372,420/1,163,068,760.59 = 257,802,860.48/x - Step 3: Cross multiply
775,372,420x = 1,163,068,760.59 × 257,802,860.48 - Step 4: Simplify right side
775,372,420x = 299,842,453,415,030,272 - Step 5: Solve for x
x = 299,842,453,415,030,272/775,372,420 - Step 6: Final answer
x = 386,707,659.03
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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.