Finding the Fourth Proportional to 5,172,984,000.15, 7,759,476,000.23 and 1,492,609,420.95
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Solution
The fourth proportional to 5,172,984,000.15, 7,759,476,000.23 and 1,492,609,420.95 is: 2,238,914,131.43
Step by Step Solution
- Step 1: Write the proportion equation
5,172,984,000.15 : 7,759,476,000.23 = 1,492,609,420.95 : x - Step 2: Convert to fraction form
5,172,984,000.15/7,759,476,000.23 = 1,492,609,420.95/x - Step 3: Cross multiply
5,172,984,000.15x = 7,759,476,000.23 × 1,492,609,420.95 - Step 4: Simplify right side
5,172,984,000.15x = 11,581,866,979,571,259,392 - Step 5: Solve for x
x = 11,581,866,979,571,259,392/5,172,984,000.15 - Step 6: Final answer
x = 2,238,914,131.43
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1.5x scale
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.