Finding the Fourth Proportional to 1,419,905,402.88, 2,129,965,161.62 and 423,847,749.66
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Solution
The fourth proportional to 1,419,905,402.88, 2,129,965,161.62 and 423,847,749.66 is: 635,803,581.54
Step by Step Solution
- Step 1: Write the proportion equation
1,419,905,402.88 : 2,129,965,161.62 = 423,847,749.66 : x - Step 2: Convert to fraction form
1,419,905,402.88/2,129,965,161.62 = 423,847,749.66/x - Step 3: Cross multiply
1,419,905,402.88x = 2,129,965,161.62 × 423,847,749.66 - Step 4: Simplify right side
1,419,905,402.88x = 902,780,940,604,716,032 - Step 5: Solve for x
x = 902,780,940,604,716,032/1,419,905,402.88 - Step 6: Final answer
x = 635,803,581.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.