Finding the Fourth Proportional to 606,203,423.70, 909,305,135.55 and 412,493,179.20
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Solution
The fourth proportional to 606,203,423.70, 909,305,135.55 and 412,493,179.20 is: 618,739,768.80
Step by Step Solution
- Step 1: Write the proportion equation
606,203,423.70 : 909,305,135.55 = 412,493,179.20 : x - Step 2: Convert to fraction form
606,203,423.70/909,305,135.55 = 412,493,179.20/x - Step 3: Cross multiply
606,203,423.70x = 909,305,135.55 × 412,493,179.20 - Step 4: Simplify right side
606,203,423.70x = 375,082,166,225,906,432 - Step 5: Solve for x
x = 375,082,166,225,906,432/606,203,423.70 - Step 6: Final answer
x = 618,739,768.80
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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.