Finding the Fourth Proportional to 791,424,137.80, 1,187,136,206.70 and 587,350,793.80
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Solution
The fourth proportional to 791,424,137.80, 1,187,136,206.70 and 587,350,793.80 is: 881,026,190.70
Step by Step Solution
- Step 1: Write the proportion equation
791,424,137.80 : 1,187,136,206.70 = 587,350,793.80 : x - Step 2: Convert to fraction form
791,424,137.80/1,187,136,206.70 = 587,350,793.80/x - Step 3: Cross multiply
791,424,137.80x = 1,187,136,206.70 × 587,350,793.80 - Step 4: Simplify right side
791,424,137.80x = 697,265,393,353,965,824 - Step 5: Solve for x
x = 697,265,393,353,965,824/791,424,137.80 - Step 6: Final answer
x = 881,026,190.70
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Double scale
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Similar ratio
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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.