Finding the Fourth Proportional to 258,444,485.48, 356,785,014.12 and 199,574,994.44
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Solution
The fourth proportional to 258,444,485.48, 356,785,014.12 and 199,574,994.44 is: 275,515,134.62
Step by Step Solution
- Step 1: Write the proportion equation
258,444,485.48 : 356,785,014.12 = 199,574,994.44 : x - Step 2: Convert to fraction form
258,444,485.48/356,785,014.12 = 199,574,994.44/x - Step 3: Cross multiply
258,444,485.48x = 356,785,014.12 × 199,574,994.44 - Step 4: Simplify right side
258,444,485.48x = 71,205,367,209,274,320 - Step 5: Solve for x
x = 71,205,367,209,274,320/258,444,485.48 - Step 6: Final answer
x = 275,515,134.62
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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.