Finding the Fourth Proportional to 762,952,722.90, 1,142,896,774.62 and 347,858,550.99
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Solution
The fourth proportional to 762,952,722.90, 1,142,896,774.62 and 347,858,550.99 is: 521,089,189.43
Step by Step Solution
- Step 1: Write the proportion equation
762,952,722.90 : 1,142,896,774.62 = 347,858,550.99 : x - Step 2: Convert to fraction form
762,952,722.90/1,142,896,774.62 = 347,858,550.99/x - Step 3: Cross multiply
762,952,722.90x = 1,142,896,774.62 × 347,858,550.99 - Step 4: Simplify right side
762,952,722.90x = 397,566,415,950,457,792 - Step 5: Solve for x
x = 397,566,415,950,457,792/762,952,722.90 - Step 6: Final answer
x = 521,089,189.43
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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.