Finding the Fourth Proportional to 757,996,890.30, 1,136,995,335.45 and 212,738,424.30
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Solution
The fourth proportional to 757,996,890.30, 1,136,995,335.45 and 212,738,424.30 is: 319,107,636.45
Step by Step Solution
- Step 1: Write the proportion equation
757,996,890.30 : 1,136,995,335.45 = 212,738,424.30 : x - Step 2: Convert to fraction form
757,996,890.30/1,136,995,335.45 = 212,738,424.30/x - Step 3: Cross multiply
757,996,890.30x = 1,136,995,335.45 × 212,738,424.30 - Step 4: Simplify right side
757,996,890.30x = 241,882,596,100,082,944 - Step 5: Solve for x
x = 241,882,596,100,082,944/757,996,890.30 - Step 6: Final answer
x = 319,107,636.45
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Similar ratio
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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.