Finding the Fourth Proportional to 5,020,371.12, 6,928,112.79 and 2,728,531.74
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Solution
The fourth proportional to 5,020,371.12, 6,928,112.79 and 2,728,531.74 is: 3,765,374.15
Step by Step Solution
- Step 1: Write the proportion equation
5,020,371.12 : 6,928,112.79 = 2,728,531.74 : x - Step 2: Convert to fraction form
5,020,371.12/6,928,112.79 = 2,728,531.74/x - Step 3: Cross multiply
5,020,371.12x = 6,928,112.79 × 2,728,531.74 - Step 4: Simplify right side
5,020,371.12x = 18,903,575,645,814.96 - Step 5: Solve for x
x = 18,903,575,645,814.96/5,020,371.12 - Step 6: Final answer
x = 3,765,374.15
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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.