Finding the Fourth Proportional to 145,972,368.99, 201,433,673.20 and 79,892,732.61
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Solution
The fourth proportional to 145,972,368.99, 201,433,673.20 and 79,892,732.61 is: 110,247,485.21
Step by Step Solution
- Step 1: Write the proportion equation
145,972,368.99 : 201,433,673.20 = 79,892,732.61 : x - Step 2: Convert to fraction form
145,972,368.99/201,433,673.20 = 79,892,732.61/x - Step 3: Cross multiply
145,972,368.99x = 201,433,673.20 × 79,892,732.61 - Step 4: Simplify right side
145,972,368.99x = 16,093,086,591,617,722 - Step 5: Solve for x
x = 16,093,086,591,617,722/145,972,368.99 - Step 6: Final answer
x = 110,247,485.21
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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.