Finding the Fourth Proportional to 28,959,378.32, 39,970,902.30 and 16,576,649.84
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Solution
The fourth proportional to 28,959,378.32, 39,970,902.30 and 16,576,649.84 is: 22,879,760.88
Step by Step Solution
- Step 1: Write the proportion equation
28,959,378.32 : 39,970,902.30 = 16,576,649.84 : x - Step 2: Convert to fraction form
28,959,378.32/39,970,902.30 = 16,576,649.84/x - Step 3: Cross multiply
28,959,378.32x = 39,970,902.30 × 16,576,649.84 - Step 4: Simplify right side
28,959,378.32x = 662,583,651,215,950.62 - Step 5: Solve for x
x = 662,583,651,215,950.62/28,959,378.32 - Step 6: Final answer
x = 22,879,760.88
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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.