Finding the Fourth Proportional to 7,378,138.14, 10,181,578.14 and 4,070,563.08
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Solution
The fourth proportional to 7,378,138.14, 10,181,578.14 and 4,070,563.08 is: 5,617,237.75
Step by Step Solution
- Step 1: Write the proportion equation
7,378,138.14 : 10,181,578.14 = 4,070,563.08 : x - Step 2: Convert to fraction form
7,378,138.14/10,181,578.14 = 4,070,563.08/x - Step 3: Cross multiply
7,378,138.14x = 10,181,578.14 × 4,070,563.08 - Step 4: Simplify right side
7,378,138.14x = 41,444,756,072,819.08 - Step 5: Solve for x
x = 41,444,756,072,819.08/7,378,138.14 - Step 6: Final answer
x = 5,617,237.75
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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.