Finding the Fourth Proportional to 98,839,608.48, 136,405,225.43 and 54,788,463.99
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Solution
The fourth proportional to 98,839,608.48, 136,405,225.43 and 54,788,463.99 is: 75,611,719.80
Step by Step Solution
- Step 1: Write the proportion equation
98,839,608.48 : 136,405,225.43 = 54,788,463.99 : x - Step 2: Convert to fraction form
98,839,608.48/136,405,225.43 = 54,788,463.99/x - Step 3: Cross multiply
98,839,608.48x = 136,405,225.43 × 54,788,463.99 - Step 4: Simplify right side
98,839,608.48x = 7,473,432,781,450,902 - Step 5: Solve for x
x = 7,473,432,781,450,902/98,839,608.48 - Step 6: Final answer
x = 75,611,719.80
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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.