Finding the Fourth Proportional to 306,320,425.62, 422,724,885.12 and 167,091,806.58
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Solution
The fourth proportional to 306,320,425.62, 422,724,885.12 and 167,091,806.58 is: 230,588,164.66
Step by Step Solution
- Step 1: Write the proportion equation
306,320,425.62 : 422,724,885.12 = 167,091,806.58 : x - Step 2: Convert to fraction form
306,320,425.62/422,724,885.12 = 167,091,806.58/x - Step 3: Cross multiply
306,320,425.62x = 422,724,885.12 × 167,091,806.58 - Step 4: Simplify right side
306,320,425.62x = 70,633,864,741,023,768 - Step 5: Solve for x
x = 70,633,864,741,023,768/306,320,425.62 - Step 6: Final answer
x = 230,588,164.66
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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.