Finding the Fourth Proportional to 1,902,192,969.65, 2,615,717,706.96 and 1,650,861,021.75
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Solution
The fourth proportional to 1,902,192,969.65, 2,615,717,706.96 and 1,650,861,021.75 is: 2,270,109,539.47
Step by Step Solution
- Step 1: Write the proportion equation
1,902,192,969.65 : 2,615,717,706.96 = 1,650,861,021.75 : x - Step 2: Convert to fraction form
1,902,192,969.65/2,615,717,706.96 = 1,650,861,021.75/x - Step 3: Cross multiply
1,902,192,969.65x = 2,615,717,706.96 × 1,650,861,021.75 - Step 4: Simplify right side
1,902,192,969.65x = 4,318,186,406,325,748,736 - Step 5: Solve for x
x = 4,318,186,406,325,748,736/1,902,192,969.65 - Step 6: Final answer
x = 2,270,109,539.47
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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.