Finding the Fourth Proportional to 5,412,209.40, 8,115,932.70 and 1,624,811.40
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Solution
The fourth proportional to 5,412,209.40, 8,115,932.70 and 1,624,811.40 is: 2,436,502.17
Step by Step Solution
- Step 1: Write the proportion equation
5,412,209.40 : 8,115,932.70 = 1,624,811.40 : x - Step 2: Convert to fraction form
5,412,209.40/8,115,932.70 = 1,624,811.40/x - Step 3: Cross multiply
5,412,209.40x = 8,115,932.70 × 1,624,811.40 - Step 4: Simplify right side
5,412,209.40x = 13,186,859,972,592.78 - Step 5: Solve for x
x = 13,186,859,972,592.78/5,412,209.40 - Step 6: Final answer
x = 2,436,502.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.