Finding the Fourth Proportional to 306,461,677.12, 422,926,087.84 and 167,241,409.60
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Solution
The fourth proportional to 306,461,677.12, 422,926,087.84 and 167,241,409.60 is: 230,798,042.19
Step by Step Solution
- Step 1: Write the proportion equation
306,461,677.12 : 422,926,087.84 = 167,241,409.60 : x - Step 2: Convert to fraction form
306,461,677.12/422,926,087.84 = 167,241,409.60/x - Step 3: Cross multiply
306,461,677.12x = 422,926,087.84 × 167,241,409.60 - Step 4: Simplify right side
306,461,677.12x = 70,730,755,086,975,016 - Step 5: Solve for x
x = 70,730,755,086,975,016/306,461,677.12 - Step 6: Final answer
x = 230,798,042.19
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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.