Finding the Fourth Proportional to 98,408,086.40, 147,612,129.60 and 75,449,835.20
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Solution
The fourth proportional to 98,408,086.40, 147,612,129.60 and 75,449,835.20 is: 113,174,752.80
Step by Step Solution
- Step 1: Write the proportion equation
98,408,086.40 : 147,612,129.60 = 75,449,835.20 : x - Step 2: Convert to fraction form
98,408,086.40/147,612,129.60 = 75,449,835.20/x - Step 3: Cross multiply
98,408,086.40x = 147,612,129.60 × 75,449,835.20 - Step 4: Simplify right side
98,408,086.40x = 11,137,310,851,841,042 - Step 5: Solve for x
x = 11,137,310,851,841,042/98,408,086.40 - Step 6: Final answer
x = 113,174,752.80
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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.