Finding the Fourth Proportional to 198,443,847.04, 273,790,960.32 and 115,878,071.68
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Solution
The fourth proportional to 198,443,847.04, 273,790,960.32 and 115,878,071.68 is: 159,875,798.61
Step by Step Solution
- Step 1: Write the proportion equation
198,443,847.04 : 273,790,960.32 = 115,878,071.68 : x - Step 2: Convert to fraction form
198,443,847.04/273,790,960.32 = 115,878,071.68/x - Step 3: Cross multiply
198,443,847.04x = 273,790,960.32 × 115,878,071.68 - Step 4: Simplify right side
198,443,847.04x = 31,726,368,525,296,996 - Step 5: Solve for x
x = 31,726,368,525,296,996/198,443,847.04 - Step 6: Final answer
x = 159,875,798.61
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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.