Finding the Fourth Proportional to 448,473,163.20, 626,331,878.40 and 448,473,163.20
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Solution
The fourth proportional to 448,473,163.20, 626,331,878.40 and 448,473,163.20 is: 626,331,878.40
Step by Step Solution
- Step 1: Write the proportion equation
448,473,163.20 : 626,331,878.40 = 448,473,163.20 : x - Step 2: Convert to fraction form
448,473,163.20/626,331,878.40 = 448,473,163.20/x - Step 3: Cross multiply
448,473,163.20x = 626,331,878.40 × 448,473,163.20 - Step 4: Simplify right side
448,473,163.20x = 280,893,038,719,045,728 - Step 5: Solve for x
x = 280,893,038,719,045,728/448,473,163.20 - Step 6: Final answer
x = 626,331,878.40
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.