Finding the Fourth Proportional to 80,710,277.80, 121,065,416.70 and 26,857,589.80
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Solution
The fourth proportional to 80,710,277.80, 121,065,416.70 and 26,857,589.80 is: 40,286,384.70
Step by Step Solution
- Step 1: Write the proportion equation
80,710,277.80 : 121,065,416.70 = 26,857,589.80 : x - Step 2: Convert to fraction form
80,710,277.80/121,065,416.70 = 26,857,589.80/x - Step 3: Cross multiply
80,710,277.80x = 121,065,416.70 × 26,857,589.80 - Step 4: Simplify right side
80,710,277.80x = 3,251,525,300,694,670 - Step 5: Solve for x
x = 3,251,525,300,694,670/80,710,277.80 - Step 6: Final answer
x = 40,286,384.70
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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.