Finding the Fourth Proportional to 99,277,931.44, 148,916,940.36 and 31,125,936.88
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Solution
The fourth proportional to 99,277,931.44, 148,916,940.36 and 31,125,936.88 is: 46,688,918.86
Step by Step Solution
- Step 1: Write the proportion equation
99,277,931.44 : 148,916,940.36 = 31,125,936.88 : x - Step 2: Convert to fraction form
99,277,931.44/148,916,940.36 = 31,125,936.88/x - Step 3: Cross multiply
99,277,931.44x = 148,916,940.36 × 31,125,936.88 - Step 4: Simplify right side
99,277,931.44x = 4,635,179,286,008,085 - Step 5: Solve for x
x = 4,635,179,286,008,085/99,277,931.44 - Step 6: Final answer
x = 46,688,918.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.