Finding the Fourth Proportional to 48,327,231.80, 72,490,847.70 and 19,587,135.80
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Solution
The fourth proportional to 48,327,231.80, 72,490,847.70 and 19,587,135.80 is: 29,380,703.70
Step by Step Solution
- Step 1: Write the proportion equation
48,327,231.80 : 72,490,847.70 = 19,587,135.80 : x - Step 2: Convert to fraction form
48,327,231.80/72,490,847.70 = 19,587,135.80/x - Step 3: Cross multiply
48,327,231.80x = 72,490,847.70 × 19,587,135.80 - Step 4: Simplify right side
48,327,231.80x = 1,419,888,078,157,017.75 - Step 5: Solve for x
x = 1,419,888,078,157,017.75/48,327,231.80 - Step 6: Final answer
x = 29,380,703.70
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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.