Finding the Fourth Proportional to 160,585,908.97, 221,608,554.37 and 90,971,289.85
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Solution
The fourth proportional to 160,585,908.97, 221,608,554.37 and 90,971,289.85 is: 125,540,379.99
Step by Step Solution
- Step 1: Write the proportion equation
160,585,908.97 : 221,608,554.37 = 90,971,289.85 : x - Step 2: Convert to fraction form
160,585,908.97/221,608,554.37 = 90,971,289.85/x - Step 3: Cross multiply
160,585,908.97x = 221,608,554.37 × 90,971,289.85 - Step 4: Simplify right side
160,585,908.97x = 20,160,016,032,051,304 - Step 5: Solve for x
x = 20,160,016,032,051,304/160,585,908.97 - Step 6: Final answer
x = 125,540,379.99
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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.