Finding the Fourth Proportional to 1,026,541,662.84, 1,539,197,564.13 and 326,731,515.12
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Solution
The fourth proportional to 1,026,541,662.84, 1,539,197,564.13 and 326,731,515.12 is: 489,901,550.42
Step by Step Solution
- Step 1: Write the proportion equation
1,026,541,662.84 : 1,539,197,564.13 = 326,731,515.12 : x - Step 2: Convert to fraction form
1,026,541,662.84/1,539,197,564.13 = 326,731,515.12/x - Step 3: Cross multiply
1,026,541,662.84x = 1,539,197,564.13 × 326,731,515.12 - Step 4: Simplify right side
1,026,541,662.84x = 502,904,352,197,208,320 - Step 5: Solve for x
x = 502,904,352,197,208,320/1,026,541,662.84 - Step 6: Final answer
x = 489,901,550.42
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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.