Finding the Fourth Proportional to 39,929,475.48, 55,102,712.88 and 21,594,760.96
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Solution
The fourth proportional to 39,929,475.48, 55,102,712.88 and 21,594,760.96 is: 29,800,789.98
Step by Step Solution
- Step 1: Write the proportion equation
39,929,475.48 : 55,102,712.88 = 21,594,760.96 : x - Step 2: Convert to fraction form
39,929,475.48/55,102,712.88 = 21,594,760.96/x - Step 3: Cross multiply
39,929,475.48x = 55,102,712.88 × 21,594,760.96 - Step 4: Simplify right side
39,929,475.48x = 1,189,929,912,891,113.25 - Step 5: Solve for x
x = 1,189,929,912,891,113.25/39,929,475.48 - Step 6: Final answer
x = 29,800,789.98
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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.