Finding the Fourth Proportional to 5,281,260.70, 7,288,112.55 and 2,866,812.70
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Solution
The fourth proportional to 5,281,260.70, 7,288,112.55 and 2,866,812.70 is: 3,956,186.75
Step by Step Solution
- Step 1: Write the proportion equation
5,281,260.70 : 7,288,112.55 = 2,866,812.70 : x - Step 2: Convert to fraction form
5,281,260.70/7,288,112.55 = 2,866,812.70/x - Step 3: Cross multiply
5,281,260.70x = 7,288,112.55 × 2,866,812.70 - Step 4: Simplify right side
5,281,260.70x = 20,893,653,617,369.39 - Step 5: Solve for x
x = 20,893,653,617,369.39/5,281,260.70 - Step 6: Final answer
x = 3,956,186.75
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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.