Finding the Fourth Proportional to 320,426,216.70, 480,639,325.05 and 199,493,864.70
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Solution
The fourth proportional to 320,426,216.70, 480,639,325.05 and 199,493,864.70 is: 299,240,797.05
Step by Step Solution
- Step 1: Write the proportion equation
320,426,216.70 : 480,639,325.05 = 199,493,864.70 : x - Step 2: Convert to fraction form
320,426,216.70/480,639,325.05 = 199,493,864.70/x - Step 3: Cross multiply
320,426,216.70x = 480,639,325.05 × 199,493,864.70 - Step 4: Simplify right side
320,426,216.70x = 95,884,596,481,024,016 - Step 5: Solve for x
x = 95,884,596,481,024,016/320,426,216.70 - Step 6: Final answer
x = 299,240,797.05
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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.