Finding the Fourth Proportional to 13,207,909.53, 19,811,868.62 and 8,719,135.77
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Solution
The fourth proportional to 13,207,909.53, 19,811,868.62 and 8,719,135.77 is: 13,078,706.51
Step by Step Solution
- Step 1: Write the proportion equation
13,207,909.53 : 19,811,868.62 = 8,719,135.77 : x - Step 2: Convert to fraction form
13,207,909.53/19,811,868.62 = 8,719,135.77/x - Step 3: Cross multiply
13,207,909.53x = 19,811,868.62 × 8,719,135.77 - Step 4: Simplify right side
13,207,909.53x = 172,742,372,311,586.84 - Step 5: Solve for x
x = 172,742,372,311,586.84/13,207,909.53 - Step 6: Final answer
x = 13,078,706.51
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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.