Finding the Fourth Proportional to 139,972,514.70, 209,958,772.05 and 88,576,265.10
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Solution
The fourth proportional to 139,972,514.70, 209,958,772.05 and 88,576,265.10 is: 132,864,397.65
Step by Step Solution
- Step 1: Write the proportion equation
139,972,514.70 : 209,958,772.05 = 88,576,265.10 : x - Step 2: Convert to fraction form
139,972,514.70/209,958,772.05 = 88,576,265.10/x - Step 3: Cross multiply
139,972,514.70x = 209,958,772.05 × 88,576,265.10 - Step 4: Simplify right side
139,972,514.70x = 18,597,363,853,171,272 - Step 5: Solve for x
x = 18,597,363,853,171,272/139,972,514.70 - Step 6: Final answer
x = 132,864,397.65
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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.