Finding the Fourth Proportional to 393,403,409, 590,097,011.57 and 131,107,004.68
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Solution
The fourth proportional to 393,403,409, 590,097,011.57 and 131,107,004.68 is: 196,657,806.94
Step by Step Solution
- Step 1: Write the proportion equation
393,403,409 : 590,097,011.57 = 131,107,004.68 : x - Step 2: Convert to fraction form
393,403,409/590,097,011.57 = 131,107,004.68/x - Step 3: Cross multiply
393,403,409x = 590,097,011.57 × 131,107,004.68 - Step 4: Simplify right side
393,403,409x = 77,365,851,657,562,016 - Step 5: Solve for x
x = 77,365,851,657,562,016/393,403,409 - Step 6: Final answer
x = 196,657,806.94
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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.