Finding the Fourth Proportional to 20,407,825.28, 28,161,735.99 and 12,672,702.74
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Solution
The fourth proportional to 20,407,825.28, 28,161,735.99 and 12,672,702.74 is: 17,487,669.75
Step by Step Solution
- Step 1: Write the proportion equation
20,407,825.28 : 28,161,735.99 = 12,672,702.74 : x - Step 2: Convert to fraction form
20,407,825.28/28,161,735.99 = 12,672,702.74/x - Step 3: Cross multiply
20,407,825.28x = 28,161,735.99 × 12,672,702.74 - Step 4: Simplify right side
20,407,825.28x = 356,885,308,702,820.88 - Step 5: Solve for x
x = 356,885,308,702,820.88/20,407,825.28 - Step 6: Final answer
x = 17,487,669.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.