Finding the Fourth Proportional to 457,623,469.80, 631,493,571.06 and 248,777,785.62
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Solution
The fourth proportional to 457,623,469.80, 631,493,571.06 and 248,777,785.62 is: 343,298,765.49
Step by Step Solution
- Step 1: Write the proportion equation
457,623,469.80 : 631,493,571.06 = 248,777,785.62 : x - Step 2: Convert to fraction form
457,623,469.80/631,493,571.06 = 248,777,785.62/x - Step 3: Cross multiply
457,623,469.80x = 631,493,571.06 × 248,777,785.62 - Step 4: Simplify right side
457,623,469.80x = 157,101,572,241,572,896 - Step 5: Solve for x
x = 157,101,572,241,572,896/457,623,469.80 - Step 6: Final answer
x = 343,298,765.49
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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.