Finding the Fourth Proportional to 314,930,606.20, 472,395,909.30 and 271,848,455.80
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Solution
The fourth proportional to 314,930,606.20, 472,395,909.30 and 271,848,455.80 is: 407,772,683.70
Step by Step Solution
- Step 1: Write the proportion equation
314,930,606.20 : 472,395,909.30 = 271,848,455.80 : x - Step 2: Convert to fraction form
314,930,606.20/472,395,909.30 = 271,848,455.80/x - Step 3: Cross multiply
314,930,606.20x = 472,395,909.30 × 271,848,455.80 - Step 4: Simplify right side
314,930,606.20x = 128,420,098,469,441,872 - Step 5: Solve for x
x = 128,420,098,469,441,872/314,930,606.20 - Step 6: Final answer
x = 407,772,683.70
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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.