Finding the Fourth Proportional to 3,927,775.86, 5,420,545.11 and 2,208,997.98
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Solution
The fourth proportional to 3,927,775.86, 5,420,545.11 and 2,208,997.98 is: 3,048,537.80
Step by Step Solution
- Step 1: Write the proportion equation
3,927,775.86 : 5,420,545.11 = 2,208,997.98 : x - Step 2: Convert to fraction form
3,927,775.86/5,420,545.11 = 2,208,997.98/x - Step 3: Cross multiply
3,927,775.86x = 5,420,545.11 × 2,208,997.98 - Step 4: Simplify right side
3,927,775.86x = 11,973,973,198,488.88 - Step 5: Solve for x
x = 11,973,973,198,488.88/3,927,775.86 - Step 6: Final answer
x = 3,048,537.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.