Finding the Fourth Proportional to 3,894,929.63, 5,374,903.86 and 2,176,063.05
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Solution
The fourth proportional to 3,894,929.63, 5,374,903.86 and 2,176,063.05 is: 3,002,911.69
Step by Step Solution
- Step 1: Write the proportion equation
3,894,929.63 : 5,374,903.86 = 2,176,063.05 : x - Step 2: Convert to fraction form
3,894,929.63/5,374,903.86 = 2,176,063.05/x - Step 3: Cross multiply
3,894,929.63x = 5,374,903.86 × 2,176,063.05 - Step 4: Simplify right side
3,894,929.63x = 11,696,129,687,048.37 - Step 5: Solve for x
x = 11,696,129,687,048.37/3,894,929.63 - Step 6: Final answer
x = 3,002,911.69
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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.