Finding the Fourth Proportional to 5,175,911.68, 7,142,661.84 and 2,884,023.52
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Solution
The fourth proportional to 5,175,911.68, 7,142,661.84 and 2,884,023.52 is: 3,979,898.81
Step by Step Solution
- Step 1: Write the proportion equation
5,175,911.68 : 7,142,661.84 = 2,884,023.52 : x - Step 2: Convert to fraction form
5,175,911.68/7,142,661.84 = 2,884,023.52/x - Step 3: Cross multiply
5,175,911.68x = 7,142,661.84 × 2,884,023.52 - Step 4: Simplify right side
5,175,911.68x = 20,599,604,741,966.48 - Step 5: Solve for x
x = 20,599,604,741,966.48/5,175,911.68 - Step 6: Final answer
x = 3,979,898.81
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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.