Finding the Fourth Proportional to 7,068,730.93, 9,755,640.45 and 4,279,391.65
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Solution
The fourth proportional to 7,068,730.93, 9,755,640.45 and 4,279,391.65 is: 5,906,039.81
Step by Step Solution
- Step 1: Write the proportion equation
7,068,730.93 : 9,755,640.45 = 4,279,391.65 : x - Step 2: Convert to fraction form
7,068,730.93/9,755,640.45 = 4,279,391.65/x - Step 3: Cross multiply
7,068,730.93x = 9,755,640.45 × 4,279,391.65 - Step 4: Simplify right side
7,068,730.93x = 41,748,206,282,132.24 - Step 5: Solve for x
x = 41,748,206,282,132.24/7,068,730.93 - Step 6: Final answer
x = 5,906,039.81
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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.