Finding the Fourth Proportional to 3,949,928,957.84, 5,450,954,700.24 and 2,165,777,889.84
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Solution
The fourth proportional to 3,949,928,957.84, 5,450,954,700.24 and 2,165,777,889.84 is: 2,988,802,404.88
Step by Step Solution
- Step 1: Write the proportion equation
3,949,928,957.84 : 5,450,954,700.24 = 2,165,777,889.84 : x - Step 2: Convert to fraction form
3,949,928,957.84/5,450,954,700.24 = 2,165,777,889.84/x - Step 3: Cross multiply
3,949,928,957.84x = 5,450,954,700.24 × 2,165,777,889.84 - Step 4: Simplify right side
3,949,928,957.84x = 11,805,557,168,299,216,896 - Step 5: Solve for x
x = 11,805,557,168,299,216,896/3,949,928,957.84 - Step 6: Final answer
x = 2,988,802,404.88
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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.