Finding the Fourth Proportional to 87,406,372.48, 120,620,114.16 and 48,248,161.72
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Solution
The fourth proportional to 87,406,372.48, 120,620,114.16 and 48,248,161.72 is: 66,582,087.89
Step by Step Solution
- Step 1: Write the proportion equation
87,406,372.48 : 120,620,114.16 = 48,248,161.72 : x - Step 2: Convert to fraction form
87,406,372.48/120,620,114.16 = 48,248,161.72/x - Step 3: Cross multiply
87,406,372.48x = 120,620,114.16 × 48,248,161.72 - Step 4: Simplify right side
87,406,372.48x = 5,819,698,774,676,542 - Step 5: Solve for x
x = 5,819,698,774,676,542/87,406,372.48 - Step 6: Final answer
x = 66,582,087.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.