Finding the Fourth Proportional to 3,855,230.08, 5,320,248.99 and 2,136,379.30
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Solution
The fourth proportional to 3,855,230.08, 5,320,248.99 and 2,136,379.30 is: 2,948,220.88
Step by Step Solution
- Step 1: Write the proportion equation
3,855,230.08 : 5,320,248.99 = 2,136,379.30 : x - Step 2: Convert to fraction form
3,855,230.08/5,320,248.99 = 2,136,379.30/x - Step 3: Cross multiply
3,855,230.08x = 5,320,248.99 × 2,136,379.30 - Step 4: Simplify right side
3,855,230.08x = 11,366,069,813,081.91 - Step 5: Solve for x
x = 11,366,069,813,081.91/3,855,230.08 - Step 6: Final answer
x = 2,948,220.88
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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.