Finding the Fourth Proportional to 19,603,727.70, 29,405,591.55 and 18,721,929.30
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Solution
The fourth proportional to 19,603,727.70, 29,405,591.55 and 18,721,929.30 is: 28,082,893.95
Step by Step Solution
- Step 1: Write the proportion equation
19,603,727.70 : 29,405,591.55 = 18,721,929.30 : x - Step 2: Convert to fraction form
19,603,727.70/29,405,591.55 = 18,721,929.30/x - Step 3: Cross multiply
19,603,727.70x = 29,405,591.55 × 18,721,929.30 - Step 4: Simplify right side
19,603,727.70x = 550,529,406,023,777.44 - Step 5: Solve for x
x = 550,529,406,023,777.44/19,603,727.70 - Step 6: Final answer
x = 28,082,893.95
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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.