Finding the Fourth Proportional to 13,205,535.20, 19,808,302.80 and 11,525,919.20
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Solution
The fourth proportional to 13,205,535.20, 19,808,302.80 and 11,525,919.20 is: 17,288,878.80
Step by Step Solution
- Step 1: Write the proportion equation
13,205,535.20 : 19,808,302.80 = 11,525,919.20 : x - Step 2: Convert to fraction form
13,205,535.20/19,808,302.80 = 11,525,919.20/x - Step 3: Cross multiply
13,205,535.20x = 19,808,302.80 × 11,525,919.20 - Step 4: Simplify right side
13,205,535.20x = 228,308,897,561,933.75 - Step 5: Solve for x
x = 228,308,897,561,933.75/13,205,535.20 - Step 6: Final answer
x = 17,288,878.80
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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.