Finding the Fourth Proportional to 135,087,304.51, 186,420,639.59 and 73,207,643.07
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Solution
The fourth proportional to 135,087,304.51, 186,420,639.59 and 73,207,643.07 is: 101,026,633.80
Step by Step Solution
- Step 1: Write the proportion equation
135,087,304.51 : 186,420,639.59 = 73,207,643.07 : x - Step 2: Convert to fraction form
135,087,304.51/186,420,639.59 = 73,207,643.07/x - Step 3: Cross multiply
135,087,304.51x = 186,420,639.59 × 73,207,643.07 - Step 4: Simplify right side
135,087,304.51x = 13,647,415,643,985,830 - Step 5: Solve for x
x = 13,647,415,643,985,830/135,087,304.51 - Step 6: Final answer
x = 101,026,633.80
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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.