Finding the Fourth Proportional to 3,963,990.14, 5,470,760.18 and 2,222,129.98
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Solution
The fourth proportional to 3,963,990.14, 5,470,760.18 and 2,222,129.98 is: 3,066,793.76
Step by Step Solution
- Step 1: Write the proportion equation
3,963,990.14 : 5,470,760.18 = 2,222,129.98 : x - Step 2: Convert to fraction form
3,963,990.14/5,470,760.18 = 2,222,129.98/x - Step 3: Cross multiply
3,963,990.14x = 5,470,760.18 × 2,222,129.98 - Step 4: Simplify right side
3,963,990.14x = 12,156,740,209,368.20 - Step 5: Solve for x
x = 12,156,740,209,368.20/3,963,990.14 - Step 6: Final answer
x = 3,066,793.76
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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.