Finding the Fourth Proportional to 163,980,497.66, 226,293,136.44 and 89,641,383.62
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Solution
The fourth proportional to 163,980,497.66, 226,293,136.44 and 89,641,383.62 is: 123,705,136.55
Step by Step Solution
- Step 1: Write the proportion equation
163,980,497.66 : 226,293,136.44 = 89,641,383.62 : x - Step 2: Convert to fraction form
163,980,497.66/226,293,136.44 = 89,641,383.62/x - Step 3: Cross multiply
163,980,497.66x = 226,293,136.44 × 89,641,383.62 - Step 4: Simplify right side
163,980,497.66x = 20,285,229,854,191,040 - Step 5: Solve for x
x = 20,285,229,854,191,040/163,980,497.66 - Step 6: Final answer
x = 123,705,136.55
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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.