Finding the Fourth Proportional to 7,398,579.52, 11,019,853.39 and 7,066,620.98
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Solution
The fourth proportional to 7,398,579.52, 11,019,853.39 and 7,066,620.98 is: 10,525,415.99
Step by Step Solution
- Step 1: Write the proportion equation
7,398,579.52 : 11,019,853.39 = 7,066,620.98 : x - Step 2: Convert to fraction form
7,398,579.52/11,019,853.39 = 7,066,620.98/x - Step 3: Cross multiply
7,398,579.52x = 11,019,853.39 × 7,066,620.98 - Step 4: Simplify right side
7,398,579.52x = 77,873,127,162,298.12 - Step 5: Solve for x
x = 77,873,127,162,298.12/7,398,579.52 - Step 6: Final answer
x = 10,525,415.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.