Finding the Fourth Proportional to 20,591,877.99, 28,416,713.65 and 11,299,603.53
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Solution
The fourth proportional to 20,591,877.99, 28,416,713.65 and 11,299,603.53 is: 15,593,410.08
Step by Step Solution
- Step 1: Write the proportion equation
20,591,877.99 : 28,416,713.65 = 11,299,603.53 : x - Step 2: Convert to fraction form
20,591,877.99/28,416,713.65 = 11,299,603.53/x - Step 3: Cross multiply
20,591,877.99x = 28,416,713.65 × 11,299,603.53 - Step 4: Simplify right side
20,591,877.99x = 321,097,597,948,852.88 - Step 5: Solve for x
x = 321,097,597,948,852.88/20,591,877.99 - Step 6: Final answer
x = 15,593,410.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.