Finding the Fourth Proportional to 168,509,909.70, 252,764,864.55 and 149,378,033.70
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Solution
The fourth proportional to 168,509,909.70, 252,764,864.55 and 149,378,033.70 is: 224,067,050.55
Step by Step Solution
- Step 1: Write the proportion equation
168,509,909.70 : 252,764,864.55 = 149,378,033.70 : x - Step 2: Convert to fraction form
168,509,909.70/252,764,864.55 = 149,378,033.70/x - Step 3: Cross multiply
168,509,909.70x = 252,764,864.55 × 149,378,033.70 - Step 4: Simplify right side
168,509,909.70x = 37,757,518,454,925,832 - Step 5: Solve for x
x = 37,757,518,454,925,832/168,509,909.70 - Step 6: Final answer
x = 224,067,050.55
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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.