Finding the Fourth Proportional to 150,368,990.80, 207,521,896.84 and 84,288,432.72
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Solution
The fourth proportional to 150,368,990.80, 207,521,896.84 and 84,288,432.72 is: 116,325,150.20
Step by Step Solution
- Step 1: Write the proportion equation
150,368,990.80 : 207,521,896.84 = 84,288,432.72 : x - Step 2: Convert to fraction form
150,368,990.80/207,521,896.84 = 84,288,432.72/x - Step 3: Cross multiply
150,368,990.80x = 207,521,896.84 × 84,288,432.72 - Step 4: Simplify right side
150,368,990.80x = 17,491,695,439,725,120 - Step 5: Solve for x
x = 17,491,695,439,725,120/150,368,990.80 - Step 6: Final answer
x = 116,325,150.20
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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.