Finding the Fourth Proportional to 22,128,460.20, 33,192,690.30 and 6,982,391.70
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Solution
The fourth proportional to 22,128,460.20, 33,192,690.30 and 6,982,391.70 is: 10,473,587.55
Step by Step Solution
- Step 1: Write the proportion equation
22,128,460.20 : 33,192,690.30 = 6,982,391.70 : x - Step 2: Convert to fraction form
22,128,460.20/33,192,690.30 = 6,982,391.70/x - Step 3: Cross multiply
22,128,460.20x = 33,192,690.30 × 6,982,391.70 - Step 4: Simplify right side
22,128,460.20x = 231,764,365,251,390.53 - Step 5: Solve for x
x = 231,764,365,251,390.53/22,128,460.20 - Step 6: Final answer
x = 10,473,587.55
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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.