Finding the Fourth Proportional to 209,952,911.80, 314,929,367.70 and 107,916,239.80
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Solution
The fourth proportional to 209,952,911.80, 314,929,367.70 and 107,916,239.80 is: 161,874,359.70
Step by Step Solution
- Step 1: Write the proportion equation
209,952,911.80 : 314,929,367.70 = 107,916,239.80 : x - Step 2: Convert to fraction form
209,952,911.80/314,929,367.70 = 107,916,239.80/x - Step 3: Cross multiply
209,952,911.80x = 314,929,367.70 × 107,916,239.80 - Step 4: Simplify right side
209,952,911.80x = 33,985,993,164,775,572 - Step 5: Solve for x
x = 33,985,993,164,775,572/209,952,911.80 - Step 6: Final answer
x = 161,874,359.70
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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.