Finding the Fourth Proportional to 14,611,683.12, 20,164,146.84 and 8,085,587.28
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Solution
The fourth proportional to 14,611,683.12, 20,164,146.84 and 8,085,587.28 is: 11,158,123.80
Step by Step Solution
- Step 1: Write the proportion equation
14,611,683.12 : 20,164,146.84 = 8,085,587.28 : x - Step 2: Convert to fraction form
14,611,683.12/20,164,146.84 = 8,085,587.28/x - Step 3: Cross multiply
14,611,683.12x = 20,164,146.84 × 8,085,587.28 - Step 4: Simplify right side
14,611,683.12x = 163,038,969,201,556.19 - Step 5: Solve for x
x = 163,038,969,201,556.19/14,611,683.12 - Step 6: Final answer
x = 11,158,123.80
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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.