Finding the Fourth Proportional to 3,941,212.14, 5,438,870.35 and 2,130,376.14
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Solution
The fourth proportional to 3,941,212.14, 5,438,870.35 and 2,130,376.14 is: 2,939,917.77
Step by Step Solution
- Step 1: Write the proportion equation
3,941,212.14 : 5,438,870.35 = 2,130,376.14 : x - Step 2: Convert to fraction form
3,941,212.14/5,438,870.35 = 2,130,376.14/x - Step 3: Cross multiply
3,941,212.14x = 5,438,870.35 × 2,130,376.14 - Step 4: Simplify right side
3,941,212.14x = 11,586,839,616,867.51 - Step 5: Solve for x
x = 11,586,839,616,867.51/3,941,212.14 - Step 6: Final answer
x = 2,939,917.77
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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.