Finding the Fourth Proportional to 13,762,545.90, 18,992,800.99 and 7,568,062.80
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Solution
The fourth proportional to 13,762,545.90, 18,992,800.99 and 7,568,062.80 is: 10,444,194.82
Step by Step Solution
- Step 1: Write the proportion equation
13,762,545.90 : 18,992,800.99 = 7,568,062.80 : x - Step 2: Convert to fraction form
13,762,545.90/18,992,800.99 = 7,568,062.80/x - Step 3: Cross multiply
13,762,545.90x = 18,992,800.99 × 7,568,062.80 - Step 4: Simplify right side
13,762,545.90x = 143,738,710,640,222.16 - Step 5: Solve for x
x = 143,738,710,640,222.16/13,762,545.90 - Step 6: Final answer
x = 10,444,194.82
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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.