Finding the Fourth Proportional to 569,911,231.80, 854,866,847.70 and 388,512,703.80
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Solution
The fourth proportional to 569,911,231.80, 854,866,847.70 and 388,512,703.80 is: 582,769,055.70
Step by Step Solution
- Step 1: Write the proportion equation
569,911,231.80 : 854,866,847.70 = 388,512,703.80 : x - Step 2: Convert to fraction form
569,911,231.80/854,866,847.70 = 388,512,703.80/x - Step 3: Cross multiply
569,911,231.80x = 854,866,847.70 × 388,512,703.80 - Step 4: Simplify right side
569,911,231.80x = 332,126,630,388,909,824 - Step 5: Solve for x
x = 332,126,630,388,909,824/569,911,231.80 - Step 6: Final answer
x = 582,769,055.70
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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.