Finding the Fourth Proportional to 14,862,168.79, 20,509,865.57 and 8,336,147.02
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Solution
The fourth proportional to 14,862,168.79, 20,509,865.57 and 8,336,147.02 is: 11,503,923.63
Step by Step Solution
- Step 1: Write the proportion equation
14,862,168.79 : 20,509,865.57 = 8,336,147.02 : x - Step 2: Convert to fraction form
14,862,168.79/20,509,865.57 = 8,336,147.02/x - Step 3: Cross multiply
14,862,168.79x = 20,509,865.57 × 8,336,147.02 - Step 4: Simplify right side
14,862,168.79x = 170,973,254,649,406.78 - Step 5: Solve for x
x = 170,973,254,649,406.78/14,862,168.79 - Step 6: Final answer
x = 11,503,923.63
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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.