Finding the Fourth Proportional to 4,001,981.16, 5,522,727.65 and 2,166,438.96
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Solution
The fourth proportional to 4,001,981.16, 5,522,727.65 and 2,166,438.96 is: 2,989,682.33
Step by Step Solution
- Step 1: Write the proportion equation
4,001,981.16 : 5,522,727.65 = 2,166,438.96 : x - Step 2: Convert to fraction form
4,001,981.16/5,522,727.65 = 2,166,438.96/x - Step 3: Cross multiply
4,001,981.16x = 5,522,727.65 × 2,166,438.96 - Step 4: Simplify right side
4,001,981.16x = 11,964,652,346,429.24 - Step 5: Solve for x
x = 11,964,652,346,429.24/4,001,981.16 - Step 6: Final answer
x = 2,989,682.33
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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.