Finding the Fourth Proportional to 318,366,615.24, 439,365,997.27 and 192,929,779.53
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Solution
The fourth proportional to 318,366,615.24, 439,365,997.27 and 192,929,779.53 is: 266,255,257.08
Step by Step Solution
- Step 1: Write the proportion equation
318,366,615.24 : 439,365,997.27 = 192,929,779.53 : x - Step 2: Convert to fraction form
318,366,615.24/439,365,997.27 = 192,929,779.53/x - Step 3: Cross multiply
318,366,615.24x = 439,365,997.27 × 192,929,779.53 - Step 4: Simplify right side
318,366,615.24x = 84,766,784,986,520,848 - Step 5: Solve for x
x = 84,766,784,986,520,848/318,366,615.24 - Step 6: Final answer
x = 266,255,257.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.