Finding the Fourth Proportional to 19,888,276.20, 29,832,414.30 and 10,306,591.80
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Solution
The fourth proportional to 19,888,276.20, 29,832,414.30 and 10,306,591.80 is: 15,459,887.70
Step by Step Solution
- Step 1: Write the proportion equation
19,888,276.20 : 29,832,414.30 = 10,306,591.80 : x - Step 2: Convert to fraction form
19,888,276.20/29,832,414.30 = 10,306,591.80/x - Step 3: Cross multiply
19,888,276.20x = 29,832,414.30 × 10,306,591.80 - Step 4: Simplify right side
19,888,276.20x = 307,470,516,598,582.75 - Step 5: Solve for x
x = 307,470,516,598,582.75/19,888,276.20 - Step 6: Final answer
x = 15,459,887.70
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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.