Finding the Fourth Proportional to 80,939,520.61, 121,391,885.76 and 25,611,739.99
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Solution
The fourth proportional to 80,939,520.61, 121,391,885.76 and 25,611,739.99 is: 38,412,105.63
Step by Step Solution
- Step 1: Write the proportion equation
80,939,520.61 : 121,391,885.76 = 25,611,739.99 : x - Step 2: Convert to fraction form
80,939,520.61/121,391,885.76 = 25,611,739.99/x - Step 3: Cross multiply
80,939,520.61x = 121,391,885.76 × 25,611,739.99 - Step 4: Simplify right side
80,939,520.61x = 3,109,057,414,980,903.50 - Step 5: Solve for x
x = 3,109,057,414,980,903.50/80,939,520.61 - Step 6: Final answer
x = 38,412,105.63
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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.