Finding the Fourth Proportional to 7,135,880.13, 9,847,519.71 and 3,872,694.01
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Solution
The fourth proportional to 7,135,880.13, 9,847,519.71 and 3,872,694.01 is: 5,344,320.52
Step by Step Solution
- Step 1: Write the proportion equation
7,135,880.13 : 9,847,519.71 = 3,872,694.01 : x - Step 2: Convert to fraction form
7,135,880.13/9,847,519.71 = 3,872,694.01/x - Step 3: Cross multiply
7,135,880.13x = 9,847,519.71 × 3,872,694.01 - Step 4: Simplify right side
7,135,880.13x = 38,136,430,594,273.94 - Step 5: Solve for x
x = 38,136,430,594,273.94/7,135,880.13 - Step 6: Final answer
x = 5,344,320.52
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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.