Finding the Fourth Proportional to 665,331,528.87, 918,120,316.32 and 363,857,302.17
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Solution
The fourth proportional to 665,331,528.87, 918,120,316.32 and 363,857,302.17 is: 502,102,736.56
Step by Step Solution
- Step 1: Write the proportion equation
665,331,528.87 : 918,120,316.32 = 363,857,302.17 : x - Step 2: Convert to fraction form
665,331,528.87/918,120,316.32 = 363,857,302.17/x - Step 3: Cross multiply
665,331,528.87x = 918,120,316.32 × 363,857,302.17 - Step 4: Simplify right side
665,331,528.87x = 334,064,781,363,662,272 - Step 5: Solve for x
x = 334,064,781,363,662,272/665,331,528.87 - Step 6: Final answer
x = 502,102,736.56
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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.