Finding the Fourth Proportional to 7,647,999.20, 11,471,998.80 and 5,358,744.80
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Solution
The fourth proportional to 7,647,999.20, 11,471,998.80 and 5,358,744.80 is: 8,038,117.20
Step by Step Solution
- Step 1: Write the proportion equation
7,647,999.20 : 11,471,998.80 = 5,358,744.80 : x - Step 2: Convert to fraction form
7,647,999.20/11,471,998.80 = 5,358,744.80/x - Step 3: Cross multiply
7,647,999.20x = 11,471,998.80 × 5,358,744.80 - Step 4: Simplify right side
7,647,999.20x = 61,475,513,915,106.24 - Step 5: Solve for x
x = 61,475,513,915,106.24/7,647,999.20 - Step 6: Final answer
x = 8,038,117.20
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1.5x scale
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.