Finding the Fourth Proportional to 3,976,924,495.27, 5,488,400,769.68 and 2,192,772,430.82
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Solution
The fourth proportional to 3,976,924,495.27, 5,488,400,769.68 and 2,192,772,430.82 is: 3,026,161,022.51
Step by Step Solution
- Step 1: Write the proportion equation
3,976,924,495.27 : 5,488,400,769.68 = 2,192,772,430.82 : x - Step 2: Convert to fraction form
3,976,924,495.27/5,488,400,769.68 = 2,192,772,430.82/x - Step 3: Cross multiply
3,976,924,495.27x = 5,488,400,769.68 × 2,192,772,430.82 - Step 4: Simplify right side
3,976,924,495.27x = 12,034,813,897,045,573,632 - Step 5: Solve for x
x = 12,034,813,897,045,573,632/3,976,924,495.27 - Step 6: Final answer
x = 3,026,161,022.51
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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.