Finding the Fourth Proportional to 49,820,422.72, 68,691,102.07 and 40,968,941.17
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Solution
The fourth proportional to 49,820,422.72, 68,691,102.07 and 40,968,941.17 is: 56,486,909.70
Step by Step Solution
- Step 1: Write the proportion equation
49,820,422.72 : 68,691,102.07 = 40,968,941.17 : x - Step 2: Convert to fraction form
49,820,422.72/68,691,102.07 = 40,968,941.17/x - Step 3: Cross multiply
49,820,422.72x = 68,691,102.07 × 40,968,941.17 - Step 4: Simplify right side
49,820,422.72x = 2,814,201,719,608,295 - Step 5: Solve for x
x = 2,814,201,719,608,295/49,820,422.72 - Step 6: Final answer
x = 56,486,909.70
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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.