Finding the Fourth Proportional to 2,215,261,269.29, 3,322,891,613.25 and 905,161,967.09
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Solution
The fourth proportional to 2,215,261,269.29, 3,322,891,613.25 and 905,161,967.09 is: 1,357,742,831.85
Step by Step Solution
- Step 1: Write the proportion equation
2,215,261,269.29 : 3,322,891,613.25 = 905,161,967.09 : x - Step 2: Convert to fraction form
2,215,261,269.29/3,322,891,613.25 = 905,161,967.09/x - Step 3: Cross multiply
2,215,261,269.29x = 3,322,891,613.25 × 905,161,967.09 - Step 4: Simplify right side
2,215,261,269.29x = 3,007,755,109,059,619,328 - Step 5: Solve for x
x = 3,007,755,109,059,619,328/2,215,261,269.29 - Step 6: Final answer
x = 1,357,742,831.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.