Finding the Fourth Proportional to 120,743,699.12, 166,630,404.96 and 67,829,751.92
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Solution
The fourth proportional to 120,743,699.12, 166,630,404.96 and 67,829,751.92 is: 93,607,360.99
Step by Step Solution
- Step 1: Write the proportion equation
120,743,699.12 : 166,630,404.96 = 67,829,751.92 : x - Step 2: Convert to fraction form
120,743,699.12/166,630,404.96 = 67,829,751.92/x - Step 3: Cross multiply
120,743,699.12x = 166,630,404.96 × 67,829,751.92 - Step 4: Simplify right side
120,743,699.12x = 11,302,499,030,765,938 - Step 5: Solve for x
x = 11,302,499,030,765,938/120,743,699.12 - Step 6: Final answer
x = 93,607,360.99
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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.