Finding the Fourth Proportional to 1,728,176,021.46, 2,591,214,312.42 and 677,655,686.79
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Solution
The fourth proportional to 1,728,176,021.46, 2,591,214,312.42 and 677,655,686.79 is: 1,016,071,912.06
Step by Step Solution
- Step 1: Write the proportion equation
1,728,176,021.46 : 2,591,214,312.42 = 677,655,686.79 : x - Step 2: Convert to fraction form
1,728,176,021.46/2,591,214,312.42 = 677,655,686.79/x - Step 3: Cross multiply
1,728,176,021.46x = 2,591,214,312.42 × 677,655,686.79 - Step 4: Simplify right side
1,728,176,021.46x = 1,755,951,114,503,052,800 - Step 5: Solve for x
x = 1,755,951,114,503,052,800/1,728,176,021.46 - Step 6: Final answer
x = 1,016,071,912.06
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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.