Finding the Fourth Proportional to 315,475,272.70, 473,212,909.05 and 261,727,560.70
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Solution
The fourth proportional to 315,475,272.70, 473,212,909.05 and 261,727,560.70 is: 392,591,341.05
Step by Step Solution
- Step 1: Write the proportion equation
315,475,272.70 : 473,212,909.05 = 261,727,560.70 : x - Step 2: Convert to fraction form
315,475,272.70/473,212,909.05 = 261,727,560.70/x - Step 3: Cross multiply
315,475,272.70x = 473,212,909.05 × 261,727,560.70 - Step 4: Simplify right side
315,475,272.70x = 123,852,860,377,407,456 - Step 5: Solve for x
x = 123,852,860,377,407,456/315,475,272.70 - Step 6: Final answer
x = 392,591,341.05
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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.