Finding the Fourth Proportional to 18,144,029.08, 27,217,372.20 and 7,218,487.81
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Solution
The fourth proportional to 18,144,029.08, 27,217,372.20 and 7,218,487.81 is: 10,828,260.28
Step by Step Solution
- Step 1: Write the proportion equation
18,144,029.08 : 27,217,372.20 = 7,218,487.81 : x - Step 2: Convert to fraction form
18,144,029.08/27,217,372.20 = 7,218,487.81/x - Step 3: Cross multiply
18,144,029.08x = 27,217,372.20 × 7,218,487.81 - Step 4: Simplify right side
18,144,029.08x = 196,468,269,445,932.88 - Step 5: Solve for x
x = 196,468,269,445,932.88/18,144,029.08 - Step 6: Final answer
x = 10,828,260.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.