Finding the Fourth Proportional to 3,138,996.58, 4,331,532.81 and 1,832,362.02
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Solution
The fourth proportional to 3,138,996.58, 4,331,532.81 and 1,832,362.02 is: 2,528,494.70
Step by Step Solution
- Step 1: Write the proportion equation
3,138,996.58 : 4,331,532.81 = 1,832,362.02 : x - Step 2: Convert to fraction form
3,138,996.58/4,331,532.81 = 1,832,362.02/x - Step 3: Cross multiply
3,138,996.58x = 4,331,532.81 × 1,832,362.02 - Step 4: Simplify right side
3,138,996.58x = 7,936,936,209,427.88 - Step 5: Solve for x
x = 7,936,936,209,427.88/3,138,996.58 - Step 6: Final answer
x = 2,528,494.70
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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.