Finding the Fourth Proportional to 166,826,905.80, 250,240,358.70 and 155,489,497.80
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Solution
The fourth proportional to 166,826,905.80, 250,240,358.70 and 155,489,497.80 is: 233,234,246.70
Step by Step Solution
- Step 1: Write the proportion equation
166,826,905.80 : 250,240,358.70 = 155,489,497.80 : x - Step 2: Convert to fraction form
166,826,905.80/250,240,358.70 = 155,489,497.80/x - Step 3: Cross multiply
166,826,905.80x = 250,240,358.70 × 155,489,497.80 - Step 4: Simplify right side
166,826,905.80x = 38,909,747,703,554,864 - Step 5: Solve for x
x = 38,909,747,703,554,864/166,826,905.80 - Step 6: Final answer
x = 233,234,246.70
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1.5x scale
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.