Finding the Fourth Proportional to 7,909,940.68, 10,916,012.10 and 4,471,976.68
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Solution
The fourth proportional to 7,909,940.68, 10,916,012.10 and 4,471,976.68 is: 6,171,494.01
Step by Step Solution
- Step 1: Write the proportion equation
7,909,940.68 : 10,916,012.10 = 4,471,976.68 : x - Step 2: Convert to fraction form
7,909,940.68/10,916,012.10 = 4,471,976.68/x - Step 3: Cross multiply
7,909,940.68x = 10,916,012.10 × 4,471,976.68 - Step 4: Simplify right side
7,909,940.68x = 48,816,151,549,797.82 - Step 5: Solve for x
x = 48,816,151,549,797.82/7,909,940.68 - Step 6: Final answer
x = 6,171,494.01
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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.