Finding the Fourth Proportional to 3,968,969,394.84, 5,477,124,301.02 and 2,208,836,336.28
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Solution
The fourth proportional to 3,968,969,394.84, 5,477,124,301.02 and 2,208,836,336.28 is: 3,048,164,390.02
Step by Step Solution
- Step 1: Write the proportion equation
3,968,969,394.84 : 5,477,124,301.02 = 2,208,836,336.28 : x - Step 2: Convert to fraction form
3,968,969,394.84/5,477,124,301.02 = 2,208,836,336.28/x - Step 3: Cross multiply
3,968,969,394.84x = 5,477,124,301.02 × 2,208,836,336.28 - Step 4: Simplify right side
3,968,969,394.84x = 12,098,071,174,415,175,680 - Step 5: Solve for x
x = 12,098,071,174,415,175,680/3,968,969,394.84 - Step 6: Final answer
x = 3,048,164,390.02
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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.