Finding the Fourth Proportional to 7,046,477.64, 9,724,891.86 and 3,990,820.68
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Solution
The fourth proportional to 7,046,477.64, 9,724,891.86 and 3,990,820.68 is: 5,507,758.84
Step by Step Solution
- Step 1: Write the proportion equation
7,046,477.64 : 9,724,891.86 = 3,990,820.68 : x - Step 2: Convert to fraction form
7,046,477.64/9,724,891.86 = 3,990,820.68/x - Step 3: Cross multiply
7,046,477.64x = 9,724,891.86 × 3,990,820.68 - Step 4: Simplify right side
7,046,477.64x = 38,810,299,545,651.66 - Step 5: Solve for x
x = 38,810,299,545,651.66/7,046,477.64 - Step 6: Final answer
x = 5,507,758.84
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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.