Finding the Fourth Proportional to 99,979,649.80, 149,969,474.70 and 28,176,065.80
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Solution
The fourth proportional to 99,979,649.80, 149,969,474.70 and 28,176,065.80 is: 42,264,098.70
Step by Step Solution
- Step 1: Write the proportion equation
99,979,649.80 : 149,969,474.70 = 28,176,065.80 : x - Step 2: Convert to fraction form
99,979,649.80/149,969,474.70 = 28,176,065.80/x - Step 3: Cross multiply
99,979,649.80x = 149,969,474.70 × 28,176,065.80 - Step 4: Simplify right side
99,979,649.80x = 4,225,549,787,138,635 - Step 5: Solve for x
x = 4,225,549,787,138,635/99,979,649.80 - Step 6: Final answer
x = 42,264,098.70
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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.