Finding the Fourth Proportional to 125,218,245.70, 187,827,368.55 and 86,954,493.70
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Solution
The fourth proportional to 125,218,245.70, 187,827,368.55 and 86,954,493.70 is: 130,431,740.55
Step by Step Solution
- Step 1: Write the proportion equation
125,218,245.70 : 187,827,368.55 = 86,954,493.70 : x - Step 2: Convert to fraction form
125,218,245.70/187,827,368.55 = 86,954,493.70/x - Step 3: Cross multiply
125,218,245.70x = 187,827,368.55 × 86,954,493.70 - Step 4: Simplify right side
125,218,245.70x = 16,332,433,735,268,554 - Step 5: Solve for x
x = 16,332,433,735,268,554/125,218,245.70 - Step 6: Final answer
x = 130,431,740.55
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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.