Finding the Fourth Proportional to 172,977,029,222.40, 259,370,956,857.16 and 137,350,639,352.70
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Solution
The fourth proportional to 172,977,029,222.40, 259,370,956,857.16 and 137,350,639,352.70 is: 205,950,853,208.66
Step by Step Solution
- Step 1: Write the proportion equation
172,977,029,222.40 : 259,370,956,857.16 = 137,350,639,352.70 : x - Step 2: Convert to fraction form
172,977,029,222.40/259,370,956,857.16 = 137,350,639,352.70/x - Step 3: Cross multiply
172,977,029,222.40x = 259,370,956,857.16 × 137,350,639,352.70 - Step 4: Simplify right side
172,977,029,222.40x = 35,624,766,753,852,494,970,880 - Step 5: Solve for x
x = 35,624,766,753,852,494,970,880/172,977,029,222.40 - Step 6: Final answer
x = 205,950,853,208.66
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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.