Finding the Fourth Proportional to 5,190,346.13, 7,158,696.84 and 3,123,206.73
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Solution
The fourth proportional to 5,190,346.13, 7,158,696.84 and 3,123,206.73 is: 4,307,629.90
Step by Step Solution
- Step 1: Write the proportion equation
5,190,346.13 : 7,158,696.84 = 3,123,206.73 : x - Step 2: Convert to fraction form
5,190,346.13/7,158,696.84 = 3,123,206.73/x - Step 3: Cross multiply
5,190,346.13x = 7,158,696.84 × 3,123,206.73 - Step 4: Simplify right side
5,190,346.13x = 22,358,090,148,717.73 - Step 5: Solve for x
x = 22,358,090,148,717.73/5,190,346.13 - Step 6: Final answer
x = 4,307,629.90
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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.