Finding the Fourth Proportional to 18,134,686.40, 27,189,403.68 and 8,031,830.72
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Solution
The fourth proportional to 18,134,686.40, 27,189,403.68 and 8,031,830.72 is: 12,042,154.08
Step by Step Solution
- Step 1: Write the proportion equation
18,134,686.40 : 27,189,403.68 = 8,031,830.72 : x - Step 2: Convert to fraction form
18,134,686.40/27,189,403.68 = 8,031,830.72/x - Step 3: Cross multiply
18,134,686.40x = 27,189,403.68 × 8,031,830.72 - Step 4: Simplify right side
18,134,686.40x = 218,380,687,735,505.03 - Step 5: Solve for x
x = 218,380,687,735,505.03/18,134,686.40 - Step 6: Final answer
x = 12,042,154.08
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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.