Finding the Fourth Proportional to 131,065,811.37, 180,874,654.29 and 71,530,925.99
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Solution
The fourth proportional to 131,065,811.37, 180,874,654.29 and 71,530,925.99 is: 98,714,770.64
Step by Step Solution
- Step 1: Write the proportion equation
131,065,811.37 : 180,874,654.29 = 71,530,925.99 : x - Step 2: Convert to fraction form
131,065,811.37/180,874,654.29 = 71,530,925.99/x - Step 3: Cross multiply
131,065,811.37x = 180,874,654.29 × 71,530,925.99 - Step 4: Simplify right side
131,065,811.37x = 12,938,131,508,580,452 - Step 5: Solve for x
x = 12,938,131,508,580,452/131,065,811.37 - Step 6: Final answer
x = 98,714,770.64
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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.