Finding the Fourth Proportional to 181,918,991.70, 272,878,487.55 and 66,879,729.90
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Solution
The fourth proportional to 181,918,991.70, 272,878,487.55 and 66,879,729.90 is: 100,319,594.85
Step by Step Solution
- Step 1: Write the proportion equation
181,918,991.70 : 272,878,487.55 = 66,879,729.90 : x - Step 2: Convert to fraction form
181,918,991.70/272,878,487.55 = 66,879,729.90/x - Step 3: Cross multiply
181,918,991.70x = 272,878,487.55 × 66,879,729.90 - Step 4: Simplify right side
181,918,991.70x = 18,250,039,542,864,512 - Step 5: Solve for x
x = 18,250,039,542,864,512/181,918,991.70 - Step 6: Final answer
x = 100,319,594.85
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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.