Finding the Fourth Proportional to 1,252,637,086.43, 1,879,731,542.98 and 728,252,987.31
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Solution
The fourth proportional to 1,252,637,086.43, 1,879,731,542.98 and 728,252,987.31 is: 1,092,830,578.27
Step by Step Solution
- Step 1: Write the proportion equation
1,252,637,086.43 : 1,879,731,542.98 = 728,252,987.31 : x - Step 2: Convert to fraction form
1,252,637,086.43/1,879,731,542.98 = 728,252,987.31/x - Step 3: Cross multiply
1,252,637,086.43x = 1,879,731,542.98 × 728,252,987.31 - Step 4: Simplify right side
1,252,637,086.43x = 1,368,920,111,524,307,456 - Step 5: Solve for x
x = 1,368,920,111,524,307,456/1,252,637,086.43 - Step 6: Final answer
x = 1,092,830,578.27
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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.