Finding the Fourth Proportional to 5,357,128.68, 7,392,891.83 and 2,909,787.48
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Solution
The fourth proportional to 5,357,128.68, 7,392,891.83 and 2,909,787.48 is: 4,015,536.19
Step by Step Solution
- Step 1: Write the proportion equation
5,357,128.68 : 7,392,891.83 = 2,909,787.48 : x - Step 2: Convert to fraction form
5,357,128.68/7,392,891.83 = 2,909,787.48/x - Step 3: Cross multiply
5,357,128.68x = 7,392,891.83 × 2,909,787.48 - Step 4: Simplify right side
5,357,128.68x = 21,511,744,073,379.35 - Step 5: Solve for x
x = 21,511,744,073,379.35/5,357,128.68 - Step 6: Final answer
x = 4,015,536.19
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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.