Finding the Fourth Proportional to 6,416,778.24, 8,855,153.97 and 3,838,567.68
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Solution
The fourth proportional to 6,416,778.24, 8,855,153.97 and 3,838,567.68 is: 5,297,223.40
Step by Step Solution
- Step 1: Write the proportion equation
6,416,778.24 : 8,855,153.97 = 3,838,567.68 : x - Step 2: Convert to fraction form
6,416,778.24/8,855,153.97 = 3,838,567.68/x - Step 3: Cross multiply
6,416,778.24x = 8,855,153.97 × 3,838,567.68 - Step 4: Simplify right side
6,416,778.24x = 33,991,107,830,665.70 - Step 5: Solve for x
x = 33,991,107,830,665.70/6,416,778.24 - Step 6: Final answer
x = 5,297,223.40
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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.