Finding the Fourth Proportional to 18,139,543.97, 27,209,147.06 and 7,354,281.17
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Solution
The fourth proportional to 18,139,543.97, 27,209,147.06 and 7,354,281.17 is: 11,031,353.29
Step by Step Solution
- Step 1: Write the proportion equation
18,139,543.97 : 27,209,147.06 = 7,354,281.17 : x - Step 2: Convert to fraction form
18,139,543.97/27,209,147.06 = 7,354,281.17/x - Step 3: Cross multiply
18,139,543.97x = 27,209,147.06 × 7,354,281.17 - Step 4: Simplify right side
18,139,543.97x = 200,103,717,961,527.44 - Step 5: Solve for x
x = 200,103,717,961,527.44/18,139,543.97 - Step 6: Final answer
x = 11,031,353.29
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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.