Finding the Fourth Proportional to 155,018,991.98, 213,782,512.17 and 113,136,717.26
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Solution
The fourth proportional to 155,018,991.98, 213,782,512.17 and 113,136,717.26 is: 156,023,796.35
Step by Step Solution
- Step 1: Write the proportion equation
155,018,991.98 : 213,782,512.17 = 113,136,717.26 : x - Step 2: Convert to fraction form
155,018,991.98/213,782,512.17 = 113,136,717.26/x - Step 3: Cross multiply
155,018,991.98x = 213,782,512.17 × 113,136,717.26 - Step 4: Simplify right side
155,018,991.98x = 24,186,651,634,509,800 - Step 5: Solve for x
x = 24,186,651,634,509,800/155,018,991.98 - Step 6: Final answer
x = 156,023,796.35
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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.