Finding the Fourth Proportional to 3,688,706.18, 5,090,404.49 and 2,057,115.31
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Solution
The fourth proportional to 3,688,706.18, 5,090,404.49 and 2,057,115.31 is: 2,838,813.53
Step by Step Solution
- Step 1: Write the proportion equation
3,688,706.18 : 5,090,404.49 = 2,057,115.31 : x - Step 2: Convert to fraction form
3,688,706.18/5,090,404.49 = 2,057,115.31/x - Step 3: Cross multiply
3,688,706.18x = 5,090,404.49 × 2,057,115.31 - Step 4: Simplify right side
3,688,706.18x = 10,471,549,010,471.74 - Step 5: Solve for x
x = 10,471,549,010,471.74/3,688,706.18 - Step 6: Final answer
x = 2,838,813.53
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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.