Finding the Fourth Proportional to 4,989,132,232.56, 6,884,531,514 and 2,981,567,687.76
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Solution
The fourth proportional to 4,989,132,232.56, 6,884,531,514 and 2,981,567,687.76 is: 4,114,281,953.39
Step by Step Solution
- Step 1: Write the proportion equation
4,989,132,232.56 : 6,884,531,514 = 2,981,567,687.76 : x - Step 2: Convert to fraction form
4,989,132,232.56/6,884,531,514 = 2,981,567,687.76/x - Step 3: Cross multiply
4,989,132,232.56x = 6,884,531,514 × 2,981,567,687.76 - Step 4: Simplify right side
4,989,132,232.56x = 20,526,696,707,507,834,880 - Step 5: Solve for x
x = 20,526,696,707,507,834,880/4,989,132,232.56 - Step 6: Final answer
x = 4,114,281,953.39
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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.