Finding the Fourth Proportional to 5,228,966.27, 7,216,148.68 and 2,905,956.70
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Solution
The fourth proportional to 5,228,966.27, 7,216,148.68 and 2,905,956.70 is: 4,010,317.62
Step by Step Solution
- Step 1: Write the proportion equation
5,228,966.27 : 7,216,148.68 = 2,905,956.70 : x - Step 2: Convert to fraction form
5,228,966.27/7,216,148.68 = 2,905,956.70/x - Step 3: Cross multiply
5,228,966.27x = 7,216,148.68 × 2,905,956.70 - Step 4: Simplify right side
5,228,966.27x = 20,969,815,579,536.89 - Step 5: Solve for x
x = 20,969,815,579,536.89/5,228,966.27 - Step 6: Final answer
x = 4,010,317.62
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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.