Finding the Fourth Proportional to 20,213,393.08, 27,897,327.30 and 12,868,880.08
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Solution
The fourth proportional to 20,213,393.08, 27,897,327.30 and 12,868,880.08 is: 17,760,865.69
Step by Step Solution
- Step 1: Write the proportion equation
20,213,393.08 : 27,897,327.30 = 12,868,880.08 : x - Step 2: Convert to fraction form
20,213,393.08/27,897,327.30 = 12,868,880.08/x - Step 3: Cross multiply
20,213,393.08x = 27,897,327.30 × 12,868,880.08 - Step 4: Simplify right side
20,213,393.08x = 359,007,359,576,210.19 - Step 5: Solve for x
x = 359,007,359,576,210.19/20,213,393.08 - Step 6: Final answer
x = 17,760,865.69
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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.