Finding the Fourth Proportional to 51,323,451.75, 76,985,276.72 and 12,461,739.93
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Solution
The fourth proportional to 51,323,451.75, 76,985,276.72 and 12,461,739.93 is: 18,692,633.95
Step by Step Solution
- Step 1: Write the proportion equation
51,323,451.75 : 76,985,276.72 = 12,461,739.93 : x - Step 2: Convert to fraction form
51,323,451.75/76,985,276.72 = 12,461,739.93/x - Step 3: Cross multiply
51,323,451.75x = 76,985,276.72 × 12,461,739.93 - Step 4: Simplify right side
51,323,451.75x = 959,370,496,861,414.75 - Step 5: Solve for x
x = 959,370,496,861,414.75/51,323,451.75 - Step 6: Final answer
x = 18,692,633.95
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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.