Finding the Fourth Proportional to 1,296,434,428.84, 1,789,079,599.29 and 709,723,564.84
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Solution
The fourth proportional to 1,296,434,428.84, 1,789,079,599.29 and 709,723,564.84 is: 979,418,567.38
Step by Step Solution
- Step 1: Write the proportion equation
1,296,434,428.84 : 1,789,079,599.29 = 709,723,564.84 : x - Step 2: Convert to fraction form
1,296,434,428.84/1,789,079,599.29 = 709,723,564.84/x - Step 3: Cross multiply
1,296,434,428.84x = 1,789,079,599.29 × 709,723,564.84 - Step 4: Simplify right side
1,296,434,428.84x = 1,269,751,950,990,617,600 - Step 5: Solve for x
x = 1,269,751,950,990,617,600/1,296,434,428.84 - Step 6: Final answer
x = 979,418,567.38
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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.