Finding the Fourth Proportional to 39,929,461.93, 55,102,694.21 and 21,594,747.43
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Solution
The fourth proportional to 39,929,461.93, 55,102,694.21 and 21,594,747.43 is: 29,800,771.33
Step by Step Solution
- Step 1: Write the proportion equation
39,929,461.93 : 55,102,694.21 = 21,594,747.43 : x - Step 2: Convert to fraction form
39,929,461.93/55,102,694.21 = 21,594,747.43/x - Step 3: Cross multiply
39,929,461.93x = 55,102,694.21 × 21,594,747.43 - Step 4: Simplify right side
39,929,461.93x = 1,189,928,764,177,473.50 - Step 5: Solve for x
x = 1,189,928,764,177,473.50/39,929,461.93 - Step 6: Final answer
x = 29,800,771.33
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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.