Finding the Fourth Proportional to 10,270,805.80, 15,406,208.70 and 7,284,821.80
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Solution
The fourth proportional to 10,270,805.80, 15,406,208.70 and 7,284,821.80 is: 10,927,232.70
Step by Step Solution
- Step 1: Write the proportion equation
10,270,805.80 : 15,406,208.70 = 7,284,821.80 : x - Step 2: Convert to fraction form
10,270,805.80/15,406,208.70 = 7,284,821.80/x - Step 3: Cross multiply
10,270,805.80x = 15,406,208.70 × 7,284,821.80 - Step 4: Simplify right side
10,270,805.80x = 112,231,484,993,109.66 - Step 5: Solve for x
x = 112,231,484,993,109.66/10,270,805.80 - Step 6: Final answer
x = 10,927,232.70
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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.