Finding the Fourth Proportional to 1,213,813,176.36, 1,675,062,163.08 and 656,896,223.46
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Solution
The fourth proportional to 1,213,813,176.36, 1,675,062,163.08 and 656,896,223.46 is: 906,516,777.39
Step by Step Solution
- Step 1: Write the proportion equation
1,213,813,176.36 : 1,675,062,163.08 = 656,896,223.46 : x - Step 2: Convert to fraction form
1,213,813,176.36/1,675,062,163.08 = 656,896,223.46/x - Step 3: Cross multiply
1,213,813,176.36x = 1,675,062,163.08 × 656,896,223.46 - Step 4: Simplify right side
1,213,813,176.36x = 1,100,342,008,987,990,656 - Step 5: Solve for x
x = 1,100,342,008,987,990,656/1,213,813,176.36 - Step 6: Final answer
x = 906,516,777.39
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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.