Finding the Fourth Proportional to 128,133,244.52, 176,823,821.58 and 69,395,912.36
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Solution
The fourth proportional to 128,133,244.52, 176,823,821.58 and 69,395,912.36 is: 95,766,328.80
Step by Step Solution
- Step 1: Write the proportion equation
128,133,244.52 : 176,823,821.58 = 69,395,912.36 : x - Step 2: Convert to fraction form
128,133,244.52/176,823,821.58 = 69,395,912.36/x - Step 3: Cross multiply
128,133,244.52x = 176,823,821.58 × 69,395,912.36 - Step 4: Simplify right side
128,133,244.52x = 12,270,850,425,525,958 - Step 5: Solve for x
x = 12,270,850,425,525,958/128,133,244.52 - Step 6: Final answer
x = 95,766,328.80
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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.