Finding the Fourth Proportional to 4,138,353,736.38, 5,718,398,507.49 and 2,946,854,129.69
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Solution
The fourth proportional to 4,138,353,736.38, 5,718,398,507.49 and 2,946,854,129.69 is: 4,071,978,214.16
Step by Step Solution
- Step 1: Write the proportion equation
4,138,353,736.38 : 5,718,398,507.49 = 2,946,854,129.69 : x - Step 2: Convert to fraction form
4,138,353,736.38/5,718,398,507.49 = 2,946,854,129.69/x - Step 3: Cross multiply
4,138,353,736.38x = 5,718,398,507.49 × 2,946,854,129.69 - Step 4: Simplify right side
4,138,353,736.38x = 16,851,286,257,035,239,424 - Step 5: Solve for x
x = 16,851,286,257,035,239,424/4,138,353,736.38 - Step 6: Final answer
x = 4,071,978,214.16
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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.