Finding the Fourth Proportional to 206,968,960.74, 310,453,441.45 and 84,118,495.62
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Solution
The fourth proportional to 206,968,960.74, 310,453,441.45 and 84,118,495.62 is: 126,177,743.57
Step by Step Solution
- Step 1: Write the proportion equation
206,968,960.74 : 310,453,441.45 = 84,118,495.62 : x - Step 2: Convert to fraction form
206,968,960.74/310,453,441.45 = 84,118,495.62/x - Step 3: Cross multiply
206,968,960.74x = 310,453,441.45 × 84,118,495.62 - Step 4: Simplify right side
206,968,960.74x = 26,114,876,454,615,456 - Step 5: Solve for x
x = 26,114,876,454,615,456/206,968,960.74 - Step 6: Final answer
x = 126,177,743.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.