Finding the Fourth Proportional to 3,853,876.35, 5,317,961.76 and 2,134,675.65
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Solution
The fourth proportional to 3,853,876.35, 5,317,961.76 and 2,134,675.65 is: 2,945,637.70
Step by Step Solution
- Step 1: Write the proportion equation
3,853,876.35 : 5,317,961.76 = 2,134,675.65 : x - Step 2: Convert to fraction form
3,853,876.35/5,317,961.76 = 2,134,675.65/x - Step 3: Cross multiply
3,853,876.35x = 5,317,961.76 × 2,134,675.65 - Step 4: Simplify right side
3,853,876.35x = 11,352,123,476,703.14 - Step 5: Solve for x
x = 11,352,123,476,703.14/3,853,876.35 - Step 6: Final answer
x = 2,945,637.70
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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.