Finding the Fourth Proportional to 5,355,910.25, 7,391,157.59 and 2,908,520.65
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Solution
The fourth proportional to 5,355,910.25, 7,391,157.59 and 2,908,520.65 is: 4,013,759.28
Step by Step Solution
- Step 1: Write the proportion equation
5,355,910.25 : 7,391,157.59 = 2,908,520.65 : x - Step 2: Convert to fraction form
5,355,910.25/7,391,157.59 = 2,908,520.65/x - Step 3: Cross multiply
5,355,910.25x = 7,391,157.59 × 2,908,520.65 - Step 4: Simplify right side
5,355,910.25x = 21,497,334,452,854.22 - Step 5: Solve for x
x = 21,497,334,452,854.22/5,355,910.25 - Step 6: Final answer
x = 4,013,759.28
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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.