Finding the Fourth Proportional to 20,124,220.14, 27,770,817.06 and 11,183,299.74
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Solution
The fourth proportional to 20,124,220.14, 27,770,817.06 and 11,183,299.74 is: 15,432,616.47
Step by Step Solution
- Step 1: Write the proportion equation
20,124,220.14 : 27,770,817.06 = 11,183,299.74 : x - Step 2: Convert to fraction form
20,124,220.14/27,770,817.06 = 11,183,299.74/x - Step 3: Cross multiply
20,124,220.14x = 27,770,817.06 × 11,183,299.74 - Step 4: Simplify right side
20,124,220.14x = 310,569,371,206,685.56 - Step 5: Solve for x
x = 310,569,371,206,685.56/20,124,220.14 - Step 6: Final answer
x = 15,432,616.47
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1.5x scale
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.