Finding the Fourth Proportional to 19,699,625.70, 29,549,438.55 and 5,324,912.10
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Solution
The fourth proportional to 19,699,625.70, 29,549,438.55 and 5,324,912.10 is: 7,987,368.15
Step by Step Solution
- Step 1: Write the proportion equation
19,699,625.70 : 29,549,438.55 = 5,324,912.10 : x - Step 2: Convert to fraction form
19,699,625.70/29,549,438.55 = 5,324,912.10/x - Step 3: Cross multiply
19,699,625.70x = 29,549,438.55 × 5,324,912.10 - Step 4: Simplify right side
19,699,625.70x = 157,348,162,883,101.44 - Step 5: Solve for x
x = 157,348,162,883,101.44/19,699,625.70 - Step 6: Final answer
x = 7,987,368.15
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1.5x scale
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.