Finding the Fourth Proportional to 1,117,925,894.91, 1,542,733,073.11 and 616,133,480.99
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Solution
The fourth proportional to 1,117,925,894.91, 1,542,733,073.11 and 616,133,480.99 is: 850,261,634.42
Step by Step Solution
- Step 1: Write the proportion equation
1,117,925,894.91 : 1,542,733,073.11 = 616,133,480.99 : x - Step 2: Convert to fraction form
1,117,925,894.91/1,542,733,073.11 = 616,133,480.99/x - Step 3: Cross multiply
1,117,925,894.91x = 1,542,733,073.11 × 616,133,480.99 - Step 4: Simplify right side
1,117,925,894.91x = 950,529,498,566,690,304 - Step 5: Solve for x
x = 950,529,498,566,690,304/1,117,925,894.91 - Step 6: Final answer
x = 850,261,634.42
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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.