Finding the Fourth Proportional to 1,296,434,440.23, 1,789,079,614.95 and 709,723,576.23
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Solution
The fourth proportional to 1,296,434,440.23, 1,789,079,614.95 and 709,723,576.23 is: 979,418,583.06
Step by Step Solution
- Step 1: Write the proportion equation
1,296,434,440.23 : 1,789,079,614.95 = 709,723,576.23 : x - Step 2: Convert to fraction form
1,296,434,440.23/1,789,079,614.95 = 709,723,576.23/x - Step 3: Cross multiply
1,296,434,440.23x = 1,789,079,614.95 × 709,723,576.23 - Step 4: Simplify right side
1,296,434,440.23x = 1,269,751,982,482,505,472 - Step 5: Solve for x
x = 1,269,751,982,482,505,472/1,296,434,440.23 - Step 6: Final answer
x = 979,418,583.06
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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.