Finding the Fourth Proportional to 306,320,338.86, 422,724,765.51 and 167,091,719.82
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Solution
The fourth proportional to 306,320,338.86, 422,724,765.51 and 167,091,719.82 is: 230,588,044.99
Step by Step Solution
- Step 1: Write the proportion equation
306,320,338.86 : 422,724,765.51 = 167,091,719.82 : x - Step 2: Convert to fraction form
306,320,338.86/422,724,765.51 = 167,091,719.82/x - Step 3: Cross multiply
306,320,338.86x = 422,724,765.51 × 167,091,719.82 - Step 4: Simplify right side
306,320,338.86x = 70,633,808,079,572,112 - Step 5: Solve for x
x = 70,633,808,079,572,112/306,320,338.86 - Step 6: Final answer
x = 230,588,044.99
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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.