Finding the Fourth Proportional to 478,206,893.70, 717,310,340.55 and 478,206,893.70
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Solution
The fourth proportional to 478,206,893.70, 717,310,340.55 and 478,206,893.70 is: 717,310,340.55
Step by Step Solution
- Step 1: Write the proportion equation
478,206,893.70 : 717,310,340.55 = 478,206,893.70 : x - Step 2: Convert to fraction form
478,206,893.70/717,310,340.55 = 478,206,893.70/x - Step 3: Cross multiply
478,206,893.70x = 717,310,340.55 × 478,206,893.70 - Step 4: Simplify right side
478,206,893.70x = 343,022,749,773,304,640 - Step 5: Solve for x
x = 343,022,749,773,304,640/478,206,893.70 - Step 6: Final answer
x = 717,310,340.55
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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.