Finding the Fourth Proportional to 315,145,243.80, 472,717,865.70 and 310,840,571.70
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Solution
The fourth proportional to 315,145,243.80, 472,717,865.70 and 310,840,571.70 is: 466,260,857.55
Step by Step Solution
- Step 1: Write the proportion equation
315,145,243.80 : 472,717,865.70 = 310,840,571.70 : x - Step 2: Convert to fraction form
315,145,243.80/472,717,865.70 = 310,840,571.70/x - Step 3: Cross multiply
315,145,243.80x = 472,717,865.70 × 310,840,571.70 - Step 4: Simplify right side
315,145,243.80x = 146,939,891,626,991,808 - Step 5: Solve for x
x = 146,939,891,626,991,808/315,145,243.80 - Step 6: Final answer
x = 466,260,857.55
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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.