Finding the Fourth Proportional to 7,139,424.62, 10,713,391.05 and 2,590,828.12
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Solution
The fourth proportional to 7,139,424.62, 10,713,391.05 and 2,590,828.12 is: 3,887,785.95
Step by Step Solution
- Step 1: Write the proportion equation
7,139,424.62 : 10,713,391.05 = 2,590,828.12 : x - Step 2: Convert to fraction form
7,139,424.62/10,713,391.05 = 2,590,828.12/x - Step 3: Cross multiply
7,139,424.62x = 10,713,391.05 × 2,590,828.12 - Step 4: Simplify right side
7,139,424.62x = 27,756,554,739,329.38 - Step 5: Solve for x
x = 27,756,554,739,329.38/7,139,424.62 - Step 6: Final answer
x = 3,887,785.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.