Finding the Fourth Proportional to 18,214,989.55, 27,445,378.47 and 15,047,486.98
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Solution
The fourth proportional to 18,214,989.55, 27,445,378.47 and 15,047,486.98 is: 22,672,753.89
Step by Step Solution
- Step 1: Write the proportion equation
18,214,989.55 : 27,445,378.47 = 15,047,486.98 : x - Step 2: Convert to fraction form
18,214,989.55/27,445,378.47 = 15,047,486.98/x - Step 3: Cross multiply
18,214,989.55x = 27,445,378.47 × 15,047,486.98 - Step 4: Simplify right side
18,214,989.55x = 412,983,975,063,455.75 - Step 5: Solve for x
x = 412,983,975,063,455.75/18,214,989.55 - Step 6: Final answer
x = 22,672,753.89
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.