Finding the Fourth Proportional to 3,836,931.84, 5,294,978.62 and 2,118,048.26
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Solution
The fourth proportional to 3,836,931.84, 5,294,978.62 and 2,118,048.26 is: 2,922,913.60
Step by Step Solution
- Step 1: Write the proportion equation
3,836,931.84 : 5,294,978.62 = 2,118,048.26 : x - Step 2: Convert to fraction form
3,836,931.84/5,294,978.62 = 2,118,048.26/x - Step 3: Cross multiply
3,836,931.84x = 5,294,978.62 × 2,118,048.26 - Step 4: Simplify right side
3,836,931.84x = 11,215,020,252,828.20 - Step 5: Solve for x
x = 11,215,020,252,828.20/3,836,931.84 - Step 6: Final answer
x = 2,922,913.60
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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.