Finding the Fourth Proportional to 92,276,408.40, 138,414,612.60 and 90,841,517.70
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Solution
The fourth proportional to 92,276,408.40, 138,414,612.60 and 90,841,517.70 is: 136,262,276.55
Step by Step Solution
- Step 1: Write the proportion equation
92,276,408.40 : 138,414,612.60 = 90,841,517.70 : x - Step 2: Convert to fraction form
92,276,408.40/138,414,612.60 = 90,841,517.70/x - Step 3: Cross multiply
92,276,408.40x = 138,414,612.60 × 90,841,517.70 - Step 4: Simplify right side
92,276,408.40x = 12,573,793,480,441,542 - Step 5: Solve for x
x = 12,573,793,480,441,542/92,276,408.40 - Step 6: Final answer
x = 136,262,276.55
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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.