Finding the Fourth Proportional to 248,816,555.31, 343,366,994.06 and 138,808,268.31
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Solution
The fourth proportional to 248,816,555.31, 343,366,994.06 and 138,808,268.31 is: 191,555,492.68
Step by Step Solution
- Step 1: Write the proportion equation
248,816,555.31 : 343,366,994.06 = 138,808,268.31 : x - Step 2: Convert to fraction form
248,816,555.31/343,366,994.06 = 138,808,268.31/x - Step 3: Cross multiply
248,816,555.31x = 343,366,994.06 × 138,808,268.31 - Step 4: Simplify right side
248,816,555.31x = 47,662,177,840,278,656 - Step 5: Solve for x
x = 47,662,177,840,278,656/248,816,555.31 - Step 6: Final answer
x = 191,555,492.68
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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.