Finding the Fourth Proportional to 22,027,477.79, 30,396,137.32 and 12,735,643.99
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Solution
The fourth proportional to 22,027,477.79, 30,396,137.32 and 12,735,643.99 is: 17,574,158.39
Step by Step Solution
- Step 1: Write the proportion equation
22,027,477.79 : 30,396,137.32 = 12,735,643.99 : x - Step 2: Convert to fraction form
22,027,477.79/30,396,137.32 = 12,735,643.99/x - Step 3: Cross multiply
22,027,477.79x = 30,396,137.32 × 12,735,643.99 - Step 4: Simplify right side
22,027,477.79x = 387,114,383,578,672.69 - Step 5: Solve for x
x = 387,114,383,578,672.69/22,027,477.79 - Step 6: Final answer
x = 17,574,158.39
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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.