Finding the Fourth Proportional to 20,599,905.26, 28,414,938.44 and 12,221,343.14
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Solution
The fourth proportional to 20,599,905.26, 28,414,938.44 and 12,221,343.14 is: 16,857,782.04
Step by Step Solution
- Step 1: Write the proportion equation
20,599,905.26 : 28,414,938.44 = 12,221,343.14 : x - Step 2: Convert to fraction form
20,599,905.26/28,414,938.44 = 12,221,343.14/x - Step 3: Cross multiply
20,599,905.26x = 28,414,938.44 × 12,221,343.14 - Step 4: Simplify right side
20,599,905.26x = 347,268,712,977,216.31 - Step 5: Solve for x
x = 347,268,712,977,216.31/20,599,905.26 - Step 6: Final answer
x = 16,857,782.04
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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.