Finding the Fourth Proportional to 3,118,821.36, 4,305,997.83 and 2,791,567.18
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Solution
The fourth proportional to 3,118,821.36, 4,305,997.83 and 2,791,567.18 is: 3,854,174.65
Step by Step Solution
- Step 1: Write the proportion equation
3,118,821.36 : 4,305,997.83 = 2,791,567.18 : x - Step 2: Convert to fraction form
3,118,821.36/4,305,997.83 = 2,791,567.18/x - Step 3: Cross multiply
3,118,821.36x = 4,305,997.83 × 2,791,567.18 - Step 4: Simplify right side
3,118,821.36x = 12,020,482,219,379.22 - Step 5: Solve for x
x = 12,020,482,219,379.22/3,118,821.36 - Step 6: Final answer
x = 3,854,174.65
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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.