Finding the Fourth Proportional to 248,816,551.13, 343,366,988.28 and 138,808,264.13
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Solution
The fourth proportional to 248,816,551.13, 343,366,988.28 and 138,808,264.13 is: 191,555,486.91
Step by Step Solution
- Step 1: Write the proportion equation
248,816,551.13 : 343,366,988.28 = 138,808,264.13 : x - Step 2: Convert to fraction form
248,816,551.13/343,366,988.28 = 138,808,264.13/x - Step 3: Cross multiply
248,816,551.13x = 343,366,988.28 × 138,808,264.13 - Step 4: Simplify right side
248,816,551.13x = 47,662,175,600,976,016 - Step 5: Solve for x
x = 47,662,175,600,976,016/248,816,551.13 - Step 6: Final answer
x = 191,555,486.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.