Finding the Fourth Proportional to 80,812,348.80, 121,218,523.20 and 29,731,027.20
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Solution
The fourth proportional to 80,812,348.80, 121,218,523.20 and 29,731,027.20 is: 44,596,540.80
Step by Step Solution
- Step 1: Write the proportion equation
80,812,348.80 : 121,218,523.20 = 29,731,027.20 : x - Step 2: Convert to fraction form
80,812,348.80/121,218,523.20 = 29,731,027.20/x - Step 3: Cross multiply
80,812,348.80x = 121,218,523.20 × 29,731,027.20 - Step 4: Simplify right side
80,812,348.80x = 3,603,951,210,403,031 - Step 5: Solve for x
x = 3,603,951,210,403,031/80,812,348.80 - Step 6: Final answer
x = 44,596,540.80
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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.