Finding the Fourth Proportional to 19,879,745.31, 29,819,658.96 and 5,502,855.65
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Solution
The fourth proportional to 19,879,745.31, 29,819,658.96 and 5,502,855.65 is: 8,254,294.82
Step by Step Solution
- Step 1: Write the proportion equation
19,879,745.31 : 29,819,658.96 = 5,502,855.65 : x - Step 2: Convert to fraction form
19,879,745.31/29,819,658.96 = 5,502,855.65/x - Step 3: Cross multiply
19,879,745.31x = 29,819,658.96 × 5,502,855.65 - Step 4: Simplify right side
19,879,745.31x = 164,093,278,640,010.81 - Step 5: Solve for x
x = 164,093,278,640,010.81/19,879,745.31 - Step 6: Final answer
x = 8,254,294.82
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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.