Finding the Fourth Proportional to 783,107,710.73, 1,080,423,882.80 and 443,979,805.31
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Solution
The fourth proportional to 783,107,710.73, 1,080,423,882.80 and 443,979,805.31 is: 612,542,027.84
Step by Step Solution
- Step 1: Write the proportion equation
783,107,710.73 : 1,080,423,882.80 = 443,979,805.31 : x - Step 2: Convert to fraction form
783,107,710.73/1,080,423,882.80 = 443,979,805.31/x - Step 3: Cross multiply
783,107,710.73x = 1,080,423,882.80 × 443,979,805.31 - Step 4: Simplify right side
783,107,710.73x = 479,686,385,144,504,000 - Step 5: Solve for x
x = 479,686,385,144,504,000/783,107,710.73 - Step 6: Final answer
x = 612,542,027.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.