Finding the Fourth Proportional to 1,124,148,451.20, 1,551,291,544.32 and 622,379,598
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Solution
The fourth proportional to 1,124,148,451.20, 1,551,291,544.32 and 622,379,598 is: 858,865,398.70
Step by Step Solution
- Step 1: Write the proportion equation
1,124,148,451.20 : 1,551,291,544.32 = 622,379,598 : x - Step 2: Convert to fraction form
1,124,148,451.20/1,551,291,544.32 = 622,379,598/x - Step 3: Cross multiply
1,124,148,451.20x = 1,551,291,544.32 × 622,379,598 - Step 4: Simplify right side
1,124,148,451.20x = 965,492,207,734,680,704 - Step 5: Solve for x
x = 965,492,207,734,680,704/1,124,148,451.20 - Step 6: Final answer
x = 858,865,398.70
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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.