Finding the Fourth Proportional to 1,193,377,433.44, 1,646,877,919.94 and 684,823,021.52
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Solution
The fourth proportional to 1,193,377,433.44, 1,646,877,919.94 and 684,823,021.52 is: 945,065,560.66
Step by Step Solution
- Step 1: Write the proportion equation
1,193,377,433.44 : 1,646,877,919.94 = 684,823,021.52 : x - Step 2: Convert to fraction form
1,193,377,433.44/1,646,877,919.94 = 684,823,021.52/x - Step 3: Cross multiply
1,193,377,433.44x = 1,646,877,919.94 × 684,823,021.52 - Step 4: Simplify right side
1,193,377,433.44x = 1,127,819,913,207,883,520 - Step 5: Solve for x
x = 1,127,819,913,207,883,520/1,193,377,433.44 - Step 6: Final answer
x = 945,065,560.66
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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.