Finding the Fourth Proportional to 79,722,441.09, 110,016,970.07 and 43,053,012.09
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Solution
The fourth proportional to 79,722,441.09, 110,016,970.07 and 43,053,012.09 is: 59,413,157.42
Step by Step Solution
- Step 1: Write the proportion equation
79,722,441.09 : 110,016,970.07 = 43,053,012.09 : x - Step 2: Convert to fraction form
79,722,441.09/110,016,970.07 = 43,053,012.09/x - Step 3: Cross multiply
79,722,441.09x = 110,016,970.07 × 43,053,012.09 - Step 4: Simplify right side
79,722,441.09x = 4,736,561,942,313,613 - Step 5: Solve for x
x = 4,736,561,942,313,613/79,722,441.09 - Step 6: Final answer
x = 59,413,157.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.