Finding the Fourth Proportional to 253,235,765.40, 379,853,648.10 and 149,771,419.80
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Solution
The fourth proportional to 253,235,765.40, 379,853,648.10 and 149,771,419.80 is: 224,657,129.70
Step by Step Solution
- Step 1: Write the proportion equation
253,235,765.40 : 379,853,648.10 = 149,771,419.80 : x - Step 2: Convert to fraction form
253,235,765.40/379,853,648.10 = 149,771,419.80/x - Step 3: Cross multiply
253,235,765.40x = 379,853,648.10 × 149,771,419.80 - Step 4: Simplify right side
253,235,765.40x = 56,891,220,192,146,584 - Step 5: Solve for x
x = 56,891,220,192,146,584/253,235,765.40 - Step 6: Final answer
x = 224,657,129.70
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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.