Finding the Fourth Proportional to 1,440,380,940.84, 2,160,571,437.18 and 349,856,660.52
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Solution
The fourth proportional to 1,440,380,940.84, 2,160,571,437.18 and 349,856,660.52 is: 524,784,997.08
Step by Step Solution
- Step 1: Write the proportion equation
1,440,380,940.84 : 2,160,571,437.18 = 349,856,660.52 : x - Step 2: Convert to fraction form
1,440,380,940.84/2,160,571,437.18 = 349,856,660.52/x - Step 3: Cross multiply
1,440,380,940.84x = 2,160,571,437.18 × 349,856,660.52 - Step 4: Simplify right side
1,440,380,940.84x = 755,890,307,826,691,712 - Step 5: Solve for x
x = 755,890,307,826,691,712/1,440,380,940.84 - Step 6: Final answer
x = 524,784,997.08
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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.