Finding the Fourth Proportional to 268,271,999.70, 402,407,999.55 and 76,795,775.70
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Solution
The fourth proportional to 268,271,999.70, 402,407,999.55 and 76,795,775.70 is: 115,193,663.55
Step by Step Solution
- Step 1: Write the proportion equation
268,271,999.70 : 402,407,999.55 = 76,795,775.70 : x - Step 2: Convert to fraction form
268,271,999.70/402,407,999.55 = 76,795,775.70/x - Step 3: Cross multiply
268,271,999.70x = 402,407,999.55 × 76,795,775.70 - Step 4: Simplify right side
268,271,999.70x = 30,903,234,473,327,504 - Step 5: Solve for x
x = 30,903,234,473,327,504/268,271,999.70 - Step 6: Final answer
x = 115,193,663.55
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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.