Finding the Fourth Proportional to 198,426,829.92, 273,740,651.52 and 115,884,201.12
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Solution
The fourth proportional to 198,426,829.92, 273,740,651.52 and 115,884,201.12 is: 159,868,585.96
Step by Step Solution
- Step 1: Write the proportion equation
198,426,829.92 : 273,740,651.52 = 115,884,201.12 : x - Step 2: Convert to fraction form
198,426,829.92/273,740,651.52 = 115,884,201.12/x - Step 3: Cross multiply
198,426,829.92x = 273,740,651.52 × 115,884,201.12 - Step 4: Simplify right side
198,426,829.92x = 31,722,216,715,463,512 - Step 5: Solve for x
x = 31,722,216,715,463,512/198,426,829.92 - Step 6: Final answer
x = 159,868,585.96
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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.