Finding the Fourth Proportional to 18,812,170.84, 28,211,490.20 and 6,512,794.49
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Solution
The fourth proportional to 18,812,170.84, 28,211,490.20 and 6,512,794.49 is: 9,766,849.31
Step by Step Solution
- Step 1: Write the proportion equation
18,812,170.84 : 28,211,490.20 = 6,512,794.49 : x - Step 2: Convert to fraction form
18,812,170.84/28,211,490.20 = 6,512,794.49/x - Step 3: Cross multiply
18,812,170.84x = 28,211,490.20 × 6,512,794.49 - Step 4: Simplify right side
18,812,170.84x = 183,735,637,826,156.28 - Step 5: Solve for x
x = 183,735,637,826,156.28/18,812,170.84 - Step 6: Final answer
x = 9,766,849.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.