Finding the Fourth Proportional to 281,371,033.21, 388,313,566.91 and 177,038,536.09
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Solution
The fourth proportional to 281,371,033.21, 388,313,566.91 and 177,038,536.09 is: 244,326,733.44
Step by Step Solution
- Step 1: Write the proportion equation
281,371,033.21 : 388,313,566.91 = 177,038,536.09 : x - Step 2: Convert to fraction form
281,371,033.21/388,313,566.91 = 177,038,536.09/x - Step 3: Cross multiply
281,371,033.21x = 388,313,566.91 × 177,038,536.09 - Step 4: Simplify right side
281,371,033.21x = 68,746,465,429,632,672 - Step 5: Solve for x
x = 68,746,465,429,632,672/281,371,033.21 - Step 6: Final answer
x = 244,326,733.44
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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.