Finding the Fourth Proportional to 757,996,893.80, 1,136,995,340.70 and 212,738,427.80
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Solution
The fourth proportional to 757,996,893.80, 1,136,995,340.70 and 212,738,427.80 is: 319,107,641.70
Step by Step Solution
- Step 1: Write the proportion equation
757,996,893.80 : 1,136,995,340.70 = 212,738,427.80 : x - Step 2: Convert to fraction form
757,996,893.80/1,136,995,340.70 = 212,738,427.80/x - Step 3: Cross multiply
757,996,893.80x = 1,136,995,340.70 × 212,738,427.80 - Step 4: Simplify right side
757,996,893.80x = 241,882,601,196,443,360 - Step 5: Solve for x
x = 241,882,601,196,443,360/757,996,893.80 - Step 6: Final answer
x = 319,107,641.70
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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.