Finding the Fourth Proportional to 5,130,685.99, 7,080,253.41 and 2,838,846.70
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Solution
The fourth proportional to 5,130,685.99, 7,080,253.41 and 2,838,846.70 is: 3,917,556.85
Step by Step Solution
- Step 1: Write the proportion equation
5,130,685.99 : 7,080,253.41 = 2,838,846.70 : x - Step 2: Convert to fraction form
5,130,685.99/7,080,253.41 = 2,838,846.70/x - Step 3: Cross multiply
5,130,685.99x = 7,080,253.41 × 2,838,846.70 - Step 4: Simplify right side
5,130,685.99x = 20,099,754,028,142.25 - Step 5: Solve for x
x = 20,099,754,028,142.25/5,130,685.99 - Step 6: Final answer
x = 3,917,556.85
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1.5x scale
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.