Finding the Fourth Proportional to 8,461,763.36, 11,686,847.84 and 5,703,693.92
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Solution
The fourth proportional to 8,461,763.36, 11,686,847.84 and 5,703,693.92 is: 7,877,578.25
Step by Step Solution
- Step 1: Write the proportion equation
8,461,763.36 : 11,686,847.84 = 5,703,693.92 : x - Step 2: Convert to fraction form
8,461,763.36/11,686,847.84 = 5,703,693.92/x - Step 3: Cross multiply
8,461,763.36x = 11,686,847.84 × 5,703,693.92 - Step 4: Simplify right side
8,461,763.36x = 66,658,202,968,973.13 - Step 5: Solve for x
x = 66,658,202,968,973.13/8,461,763.36 - Step 6: Final answer
x = 7,877,578.25
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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.