Finding the Fourth Proportional to 36,980,721.28, 51,033,118.80 and 20,683,197.28
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Solution
The fourth proportional to 36,980,721.28, 51,033,118.80 and 20,683,197.28 is: 28,542,657.56
Step by Step Solution
- Step 1: Write the proportion equation
36,980,721.28 : 51,033,118.80 = 20,683,197.28 : x - Step 2: Convert to fraction form
36,980,721.28/51,033,118.80 = 20,683,197.28/x - Step 3: Cross multiply
36,980,721.28x = 51,033,118.80 × 20,683,197.28 - Step 4: Simplify right side
36,980,721.28x = 1,055,528,063,954,076.88 - Step 5: Solve for x
x = 1,055,528,063,954,076.88/36,980,721.28 - Step 6: Final answer
x = 28,542,657.56
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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.