Finding the Fourth Proportional to 19,822,529.80, 29,733,794.70 and 13,775,912.20
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Solution
The fourth proportional to 19,822,529.80, 29,733,794.70 and 13,775,912.20 is: 20,663,868.30
Step by Step Solution
- Step 1: Write the proportion equation
19,822,529.80 : 29,733,794.70 = 13,775,912.20 : x - Step 2: Convert to fraction form
19,822,529.80/29,733,794.70 = 13,775,912.20/x - Step 3: Cross multiply
19,822,529.80x = 29,733,794.70 × 13,775,912.20 - Step 4: Simplify right side
19,822,529.80x = 409,610,145,160,025.31 - Step 5: Solve for x
x = 409,610,145,160,025.31/19,822,529.80 - Step 6: Final answer
x = 20,663,868.30
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1.5x scale
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.