Finding the Fourth Proportional to 20,605,636.96, 28,434,356.58 and 11,437,558
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Solution
The fourth proportional to 20,605,636.96, 28,434,356.58 and 11,437,558 is: 15,783,040.50
Step by Step Solution
- Step 1: Write the proportion equation
20,605,636.96 : 28,434,356.58 = 11,437,558 : x - Step 2: Convert to fraction form
20,605,636.96/28,434,356.58 = 11,437,558/x - Step 3: Cross multiply
20,605,636.96x = 28,434,356.58 × 11,437,558 - Step 4: Simplify right side
20,605,636.96x = 325,219,602,576,431.62 - Step 5: Solve for x
x = 325,219,602,576,431.62/20,605,636.96 - Step 6: Final answer
x = 15,783,040.50
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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.