Finding the Fourth Proportional to 7,206,857.94, 9,945,463.55 and 3,943,672.91
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Solution
The fourth proportional to 7,206,857.94, 9,945,463.55 and 3,943,672.91 is: 5,442,268.38
Step by Step Solution
- Step 1: Write the proportion equation
7,206,857.94 : 9,945,463.55 = 3,943,672.91 : x - Step 2: Convert to fraction form
7,206,857.94/9,945,463.55 = 3,943,672.91/x - Step 3: Cross multiply
7,206,857.94x = 9,945,463.55 × 3,943,672.91 - Step 4: Simplify right side
7,206,857.94x = 39,221,655,110,081.74 - Step 5: Solve for x
x = 39,221,655,110,081.74/7,206,857.94 - Step 6: Final answer
x = 5,442,268.38
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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.