Finding the Fourth Proportional to 71,691,138,919.98, 98,934,087,702.28 and 39,576,764,966.62
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Solution
The fourth proportional to 71,691,138,919.98, 98,934,087,702.28 and 39,576,764,966.62 is: 54,616,110,096.26
Step by Step Solution
- Step 1: Write the proportion equation
71,691,138,919.98 : 98,934,087,702.28 = 39,576,764,966.62 : x - Step 2: Convert to fraction form
71,691,138,919.98/98,934,087,702.28 = 39,576,764,966.62/x - Step 3: Cross multiply
71,691,138,919.98x = 98,934,087,702.28 × 39,576,764,966.62 - Step 4: Simplify right side
71,691,138,919.98x = 3,915,491,136,180,105,773,056 - Step 5: Solve for x
x = 3,915,491,136,180,105,773,056/71,691,138,919.98 - Step 6: Final answer
x = 54,616,110,096.26
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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.