Finding the Fourth Proportional to 3,983,346,166.38, 5,497,499,749.21 and 2,267,112,623.75
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Solution
The fourth proportional to 3,983,346,166.38, 5,497,499,749.21 and 2,267,112,623.75 is: 3,128,889,772.55
Step by Step Solution
- Step 1: Write the proportion equation
3,983,346,166.38 : 5,497,499,749.21 = 2,267,112,623.75 : x - Step 2: Convert to fraction form
3,983,346,166.38/5,497,499,749.21 = 2,267,112,623.75/x - Step 3: Cross multiply
3,983,346,166.38x = 5,497,499,749.21 × 2,267,112,623.75 - Step 4: Simplify right side
3,983,346,166.38x = 12,463,451,080,484,186,112 - Step 5: Solve for x
x = 12,463,451,080,484,186,112/3,983,346,166.38 - Step 6: Final answer
x = 3,128,889,772.55
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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.