Finding the Fourth Proportional to 655,121,990,655.80, 982,682,985,983.70 and 655,121,990,655.80
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Solution
The fourth proportional to 655,121,990,655.80, 982,682,985,983.70 and 655,121,990,655.80 is: 982,682,985,983.70
Step by Step Solution
- Step 1: Write the proportion equation
655,121,990,655.80 : 982,682,985,983.70 = 655,121,990,655.80 : x - Step 2: Convert to fraction form
655,121,990,655.80/982,682,985,983.70 = 655,121,990,655.80/x - Step 3: Cross multiply
655,121,990,655.80x = 982,682,985,983.70 × 655,121,990,655.80 - Step 4: Simplify right side
655,121,990,655.80x = 643,777,233,961,227,185,553,408 - Step 5: Solve for x
x = 643,777,233,961,227,185,553,408/655,121,990,655.80 - Step 6: Final answer
x = 982,682,985,983.70
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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.