Finding the Fourth Proportional to 174,438,861.20, 261,374,856.60 and 145,528,470.80
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Solution
The fourth proportional to 174,438,861.20, 261,374,856.60 and 145,528,470.80 is: 218,056,245.75
Step by Step Solution
- Step 1: Write the proportion equation
174,438,861.20 : 261,374,856.60 = 145,528,470.80 : x - Step 2: Convert to fraction form
174,438,861.20/261,374,856.60 = 145,528,470.80/x - Step 3: Cross multiply
174,438,861.20x = 261,374,856.60 × 145,528,470.80 - Step 4: Simplify right side
174,438,861.20x = 38,037,483,186,567,288 - Step 5: Solve for x
x = 38,037,483,186,567,288/174,438,861.20 - Step 6: Final answer
x = 218,056,245.75
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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.