Finding the Fourth Proportional to 120,507,765.66, 166,318,894.99 and 73,492,115.33
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Solution
The fourth proportional to 120,507,765.66, 166,318,894.99 and 73,492,115.33 is: 101,430,205.31
Step by Step Solution
- Step 1: Write the proportion equation
120,507,765.66 : 166,318,894.99 = 73,492,115.33 : x - Step 2: Convert to fraction form
120,507,765.66/166,318,894.99 = 73,492,115.33/x - Step 3: Cross multiply
120,507,765.66x = 166,318,894.99 × 73,492,115.33 - Step 4: Simplify right side
120,507,765.66x = 12,223,127,412,670,902 - Step 5: Solve for x
x = 12,223,127,412,670,902/120,507,765.66 - Step 6: Final answer
x = 101,430,205.31
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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.