Finding the Fourth Proportional to 5,036,875.62, 6,947,676.09 and 4,120,435.14
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Solution
The fourth proportional to 5,036,875.62, 6,947,676.09 and 4,120,435.14 is: 5,683,572.69
Step by Step Solution
- Step 1: Write the proportion equation
5,036,875.62 : 6,947,676.09 = 4,120,435.14 : x - Step 2: Convert to fraction form
5,036,875.62/6,947,676.09 = 4,120,435.14/x - Step 3: Cross multiply
5,036,875.62x = 6,947,676.09 × 4,120,435.14 - Step 4: Simplify right side
5,036,875.62x = 28,627,448,702,573.80 - Step 5: Solve for x
x = 28,627,448,702,573.80/5,036,875.62 - Step 6: Final answer
x = 5,683,572.69
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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.