Finding the Fourth Proportional to 245,816,034.53, 339,226,492.41 and 139,969,536.12
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Solution
The fourth proportional to 245,816,034.53, 339,226,492.41 and 139,969,536.12 is: 193,158,167.55
Step by Step Solution
- Step 1: Write the proportion equation
245,816,034.53 : 339,226,492.41 = 139,969,536.12 : x - Step 2: Convert to fraction form
245,816,034.53/339,226,492.41 = 139,969,536.12/x - Step 3: Cross multiply
245,816,034.53x = 339,226,492.41 × 139,969,536.12 - Step 4: Simplify right side
245,816,034.53x = 47,481,374,782,242,408 - Step 5: Solve for x
x = 47,481,374,782,242,408/245,816,034.53 - Step 6: Final answer
x = 193,158,167.55
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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.