Finding the Fourth Proportional to 120,670,201.80, 181,005,302.70 and 39,891,169.80
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Solution
The fourth proportional to 120,670,201.80, 181,005,302.70 and 39,891,169.80 is: 59,836,754.70
Step by Step Solution
- Step 1: Write the proportion equation
120,670,201.80 : 181,005,302.70 = 39,891,169.80 : x - Step 2: Convert to fraction form
120,670,201.80/181,005,302.70 = 39,891,169.80/x - Step 3: Cross multiply
120,670,201.80x = 181,005,302.70 × 39,891,169.80 - Step 4: Simplify right side
120,670,201.80x = 7,220,513,264,706,097 - Step 5: Solve for x
x = 7,220,513,264,706,097/120,670,201.80 - Step 6: Final answer
x = 59,836,754.70
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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.