Finding the Fourth Proportional to 467,255,703.68, 644,893,812.24 and 281,616,961.76
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Solution
The fourth proportional to 467,255,703.68, 644,893,812.24 and 281,616,961.76 is: 388,680,190.80
Step by Step Solution
- Step 1: Write the proportion equation
467,255,703.68 : 644,893,812.24 = 281,616,961.76 : x - Step 2: Convert to fraction form
467,255,703.68/644,893,812.24 = 281,616,961.76/x - Step 3: Cross multiply
467,255,703.68x = 644,893,812.24 × 281,616,961.76 - Step 4: Simplify right side
467,255,703.68x = 181,613,036,060,852,704 - Step 5: Solve for x
x = 181,613,036,060,852,704/467,255,703.68 - Step 6: Final answer
x = 388,680,190.80
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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.