Finding the Fourth Proportional to 147,975,716.52, 204,204,984.21 and 81,896,342.58
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Solution
The fourth proportional to 147,975,716.52, 204,204,984.21 and 81,896,342.58 is: 113,016,120.05
Step by Step Solution
- Step 1: Write the proportion equation
147,975,716.52 : 204,204,984.21 = 81,896,342.58 : x - Step 2: Convert to fraction form
147,975,716.52/204,204,984.21 = 81,896,342.58/x - Step 3: Cross multiply
147,975,716.52x = 204,204,984.21 × 81,896,342.58 - Step 4: Simplify right side
147,975,716.52x = 16,723,641,343,405,650 - Step 5: Solve for x
x = 16,723,641,343,405,650/147,975,716.52 - Step 6: Final answer
x = 113,016,120.05
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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.