Finding the Fourth Proportional to 112,675,728.48, 155,506,236.18 and 66,263,739.36
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Solution
The fourth proportional to 112,675,728.48, 155,506,236.18 and 66,263,739.36 is: 91,452,035.34
Step by Step Solution
- Step 1: Write the proportion equation
112,675,728.48 : 155,506,236.18 = 66,263,739.36 : x - Step 2: Convert to fraction form
112,675,728.48/155,506,236.18 = 66,263,739.36/x - Step 3: Cross multiply
112,675,728.48x = 155,506,236.18 × 66,263,739.36 - Step 4: Simplify right side
112,675,728.48x = 10,304,424,703,086,122 - Step 5: Solve for x
x = 10,304,424,703,086,122/112,675,728.48 - Step 6: Final answer
x = 91,452,035.34
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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.