Finding the Fourth Proportional to 5,078,726.91, 7,008,633.21 and 2,755,618.68
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Solution
The fourth proportional to 5,078,726.91, 7,008,633.21 and 2,755,618.68 is: 3,802,748.39
Step by Step Solution
- Step 1: Write the proportion equation
5,078,726.91 : 7,008,633.21 = 2,755,618.68 : x - Step 2: Convert to fraction form
5,078,726.91/7,008,633.21 = 2,755,618.68/x - Step 3: Cross multiply
5,078,726.91x = 7,008,633.21 × 2,755,618.68 - Step 4: Simplify right side
5,078,726.91x = 19,313,120,594,744.36 - Step 5: Solve for x
x = 19,313,120,594,744.36/5,078,726.91 - Step 6: Final answer
x = 3,802,748.39
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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.