Finding the Fourth Proportional to 19,641,311.80, 29,412,201.30 and 15,659,999.80
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Solution
The fourth proportional to 19,641,311.80, 29,412,201.30 and 15,659,999.80 is: 23,450,321.00
Step by Step Solution
- Step 1: Write the proportion equation
19,641,311.80 : 29,412,201.30 = 15,659,999.80 : x - Step 2: Convert to fraction form
19,641,311.80/29,412,201.30 = 15,659,999.80/x - Step 3: Cross multiply
19,641,311.80x = 29,412,201.30 × 15,659,999.80 - Step 4: Simplify right side
19,641,311.80x = 460,595,066,475,559.75 - Step 5: Solve for x
x = 460,595,066,475,559.75/19,641,311.80 - Step 6: Final answer
x = 23,450,321.00
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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.