Finding the Fourth Proportional to 4,135,128.57, 5,705,641.22 and 2,415,916.94
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Solution
The fourth proportional to 4,135,128.57, 5,705,641.22 and 2,415,916.94 is: 3,333,476.82
Step by Step Solution
- Step 1: Write the proportion equation
4,135,128.57 : 5,705,641.22 = 2,415,916.94 : x - Step 2: Convert to fraction form
4,135,128.57/5,705,641.22 = 2,415,916.94/x - Step 3: Cross multiply
4,135,128.57x = 5,705,641.22 × 2,415,916.94 - Step 4: Simplify right side
4,135,128.57x = 13,784,355,236,352.48 - Step 5: Solve for x
x = 13,784,355,236,352.48/4,135,128.57 - Step 6: Final answer
x = 3,333,476.82
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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.