Finding the Fourth Proportional to 19,691,325.40, 29,522,991.30 and 7,556,099.80
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Solution
The fourth proportional to 19,691,325.40, 29,522,991.30 and 7,556,099.80 is: 11,328,778.75
Step by Step Solution
- Step 1: Write the proportion equation
19,691,325.40 : 29,522,991.30 = 7,556,099.80 : x - Step 2: Convert to fraction form
19,691,325.40/29,522,991.30 = 7,556,099.80/x - Step 3: Cross multiply
19,691,325.40x = 29,522,991.30 × 7,556,099.80 - Step 4: Simplify right side
19,691,325.40x = 223,078,668,657,331.75 - Step 5: Solve for x
x = 223,078,668,657,331.75/19,691,325.40 - Step 6: Final answer
x = 11,328,778.75
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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.