Finding the Fourth Proportional to 7,621,578.76, 11,434,613.94 and 3,070,285.48
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Solution
The fourth proportional to 7,621,578.76, 11,434,613.94 and 3,070,285.48 is: 4,606,332.92
Step by Step Solution
- Step 1: Write the proportion equation
7,621,578.76 : 11,434,613.94 = 3,070,285.48 : x - Step 2: Convert to fraction form
7,621,578.76/11,434,613.94 = 3,070,285.48/x - Step 3: Cross multiply
7,621,578.76x = 11,434,613.94 × 3,070,285.48 - Step 4: Simplify right side
7,621,578.76x = 35,107,529,149,387.59 - Step 5: Solve for x
x = 35,107,529,149,387.59/7,621,578.76 - Step 6: Final answer
x = 4,606,332.92
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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.