Finding the Fourth Proportional to 448,403,772.60, 672,605,658.90 and 275,319,343.80
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Solution
The fourth proportional to 448,403,772.60, 672,605,658.90 and 275,319,343.80 is: 412,979,015.70
Step by Step Solution
- Step 1: Write the proportion equation
448,403,772.60 : 672,605,658.90 = 275,319,343.80 : x - Step 2: Convert to fraction form
448,403,772.60/672,605,658.90 = 275,319,343.80/x - Step 3: Cross multiply
448,403,772.60x = 672,605,658.90 × 275,319,343.80 - Step 4: Simplify right side
448,403,772.60x = 185,181,348,644,514,624 - Step 5: Solve for x
x = 185,181,348,644,514,624/448,403,772.60 - Step 6: Final answer
x = 412,979,015.70
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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.