Finding the Fourth Proportional to 5,306,780.80, 7,322,617.65 and 2,983,355.74
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Solution
The fourth proportional to 5,306,780.80, 7,322,617.65 and 2,983,355.74 is: 4,116,614.99
Step by Step Solution
- Step 1: Write the proportion equation
5,306,780.80 : 7,322,617.65 = 2,983,355.74 : x - Step 2: Convert to fraction form
5,306,780.80/7,322,617.65 = 2,983,355.74/x - Step 3: Cross multiply
5,306,780.80x = 7,322,617.65 × 2,983,355.74 - Step 4: Simplify right side
5,306,780.80x = 21,845,973,397,952.81 - Step 5: Solve for x
x = 21,845,973,397,952.81/5,306,780.80 - Step 6: Final answer
x = 4,116,614.99
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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.