Finding the Fourth Proportional to 2,639,313,612.70, 3,961,521,335.85 and 1,330,693,294.30
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Solution
The fourth proportional to 2,639,313,612.70, 3,961,521,335.85 and 1,330,693,294.30 is: 1,997,326,066.70
Step by Step Solution
- Step 1: Write the proportion equation
2,639,313,612.70 : 3,961,521,335.85 = 1,330,693,294.30 : x - Step 2: Convert to fraction form
2,639,313,612.70/3,961,521,335.85 = 1,330,693,294.30/x - Step 3: Cross multiply
2,639,313,612.70x = 3,961,521,335.85 × 1,330,693,294.30 - Step 4: Simplify right side
2,639,313,612.70x = 5,271,569,876,841,972,736 - Step 5: Solve for x
x = 5,271,569,876,841,972,736/2,639,313,612.70 - Step 6: Final answer
x = 1,997,326,066.70
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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.