Finding the Fourth Proportional to 6,619,332.76, 9,135,418.85 and 4,007,276.09
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Solution
The fourth proportional to 6,619,332.76, 9,135,418.85 and 4,007,276.09 is: 5,530,488.78
Step by Step Solution
- Step 1: Write the proportion equation
6,619,332.76 : 9,135,418.85 = 4,007,276.09 : x - Step 2: Convert to fraction form
6,619,332.76/9,135,418.85 = 4,007,276.09/x - Step 3: Cross multiply
6,619,332.76x = 9,135,418.85 × 4,007,276.09 - Step 4: Simplify right side
6,619,332.76x = 36,608,145,564,698.66 - Step 5: Solve for x
x = 36,608,145,564,698.66/6,619,332.76 - Step 6: Final answer
x = 5,530,488.78
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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.