Finding the Fourth Proportional to 313,726,793.70, 470,590,190.55 and 141,539,909.70
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Solution
The fourth proportional to 313,726,793.70, 470,590,190.55 and 141,539,909.70 is: 212,309,864.55
Step by Step Solution
- Step 1: Write the proportion equation
313,726,793.70 : 470,590,190.55 = 141,539,909.70 : x - Step 2: Convert to fraction form
313,726,793.70/470,590,190.55 = 141,539,909.70/x - Step 3: Cross multiply
313,726,793.70x = 470,590,190.55 × 141,539,909.70 - Step 4: Simplify right side
313,726,793.70x = 66,607,293,076,152,792 - Step 5: Solve for x
x = 66,607,293,076,152,792/313,726,793.70 - Step 6: Final answer
x = 212,309,864.55
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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.