Finding the Fourth Proportional to 2,614,213,665.28, 3,921,318,102.02 and 819,440,129.15
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Solution
The fourth proportional to 2,614,213,665.28, 3,921,318,102.02 and 819,440,129.15 is: 1,229,159,442.72
Step by Step Solution
- Step 1: Write the proportion equation
2,614,213,665.28 : 3,921,318,102.02 = 819,440,129.15 : x - Step 2: Convert to fraction form
2,614,213,665.28/3,921,318,102.02 = 819,440,129.15/x - Step 3: Cross multiply
2,614,213,665.28x = 3,921,318,102.02 × 819,440,129.15 - Step 4: Simplify right side
2,614,213,665.28x = 3,213,285,411,972,756,480 - Step 5: Solve for x
x = 3,213,285,411,972,756,480/2,614,213,665.28 - Step 6: Final answer
x = 1,229,159,442.72
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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.