Finding the Fourth Proportional to 223,197,415.11, 307,558,188.60 and 172,654,578.09
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Solution
The fourth proportional to 223,197,415.11, 307,558,188.60 and 172,654,578.09 is: 237,911,936.68
Step by Step Solution
- Step 1: Write the proportion equation
223,197,415.11 : 307,558,188.60 = 172,654,578.09 : x - Step 2: Convert to fraction form
223,197,415.11/307,558,188.60 = 172,654,578.09/x - Step 3: Cross multiply
223,197,415.11x = 307,558,188.60 × 172,654,578.09 - Step 4: Simplify right side
223,197,415.11x = 53,101,329,290,857,656 - Step 5: Solve for x
x = 53,101,329,290,857,656/223,197,415.11 - Step 6: Final answer
x = 237,911,936.68
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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.