Finding the Fourth Proportional to 18,998,189.08, 28,497,291.82 and 4,621,168.19
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Solution
The fourth proportional to 18,998,189.08, 28,497,291.82 and 4,621,168.19 is: 6,931,754.28
Step by Step Solution
- Step 1: Write the proportion equation
18,998,189.08 : 28,497,291.82 = 4,621,168.19 : x - Step 2: Convert to fraction form
18,998,189.08/28,497,291.82 = 4,621,168.19/x - Step 3: Cross multiply
18,998,189.08x = 28,497,291.82 × 4,621,168.19 - Step 4: Simplify right side
18,998,189.08x = 131,690,778,519,421.50 - Step 5: Solve for x
x = 131,690,778,519,421.50/18,998,189.08 - Step 6: Final answer
x = 6,931,754.28
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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.