Finding the Fourth Proportional to 20,591,889.95, 28,416,730.00 and 11,299,615.49
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Solution
The fourth proportional to 20,591,889.95, 28,416,730.00 and 11,299,615.49 is: 15,593,426.50
Step by Step Solution
- Step 1: Write the proportion equation
20,591,889.95 : 28,416,730.00 = 11,299,615.49 : x - Step 2: Convert to fraction form
20,591,889.95/28,416,730.00 = 11,299,615.49/x - Step 3: Cross multiply
20,591,889.95x = 28,416,730.00 × 11,299,615.49 - Step 4: Simplify right side
20,591,889.95x = 321,098,122,342,552.38 - Step 5: Solve for x
x = 321,098,122,342,552.38/20,591,889.95 - Step 6: Final answer
x = 15,593,426.50
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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.