Finding the Fourth Proportional to 3,688,715.07, 5,090,416.74 and 2,057,124.18
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Solution
The fourth proportional to 3,688,715.07, 5,090,416.74 and 2,057,124.18 is: 2,838,825.76
Step by Step Solution
- Step 1: Write the proportion equation
3,688,715.07 : 5,090,416.74 = 2,057,124.18 : x - Step 2: Convert to fraction form
3,688,715.07/5,090,416.74 = 2,057,124.18/x - Step 3: Cross multiply
3,688,715.07x = 5,090,416.74 × 2,057,124.18 - Step 4: Simplify right side
3,688,715.07x = 10,471,619,362,130.77 - Step 5: Solve for x
x = 10,471,619,362,130.77/3,688,715.07 - Step 6: Final answer
x = 2,838,825.76
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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.