Finding the Fourth Proportional to 245,816,037.03, 339,226,495.86 and 139,969,538.62
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Solution
The fourth proportional to 245,816,037.03, 339,226,495.86 and 139,969,538.62 is: 193,158,170.99
Step by Step Solution
- Step 1: Write the proportion equation
245,816,037.03 : 339,226,495.86 = 139,969,538.62 : x - Step 2: Convert to fraction form
245,816,037.03/339,226,495.86 = 139,969,538.62/x - Step 3: Cross multiply
245,816,037.03x = 339,226,495.86 × 139,969,538.62 - Step 4: Simplify right side
245,816,037.03x = 47,481,376,113,203,544 - Step 5: Solve for x
x = 47,481,376,113,203,544/245,816,037.03 - Step 6: Final answer
x = 193,158,170.99
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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.