Finding the Fourth Proportional to 7,104,287.20, 10,656,430.80 and 3,115,199.20
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Solution
The fourth proportional to 7,104,287.20, 10,656,430.80 and 3,115,199.20 is: 4,672,798.80
Step by Step Solution
- Step 1: Write the proportion equation
7,104,287.20 : 10,656,430.80 = 3,115,199.20 : x - Step 2: Convert to fraction form
7,104,287.20/10,656,430.80 = 3,115,199.20/x - Step 3: Cross multiply
7,104,287.20x = 10,656,430.80 × 3,115,199.20 - Step 4: Simplify right side
7,104,287.20x = 33,196,904,703,015.36 - Step 5: Solve for x
x = 33,196,904,703,015.36/7,104,287.20 - Step 6: Final answer
x = 4,672,798.80
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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.