Finding the Fourth Proportional to 2,639,313,621.20, 3,961,521,348.60 and 1,330,693,302.80
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Solution
The fourth proportional to 2,639,313,621.20, 3,961,521,348.60 and 1,330,693,302.80 is: 1,997,326,079.45
Step by Step Solution
- Step 1: Write the proportion equation
2,639,313,621.20 : 3,961,521,348.60 = 1,330,693,302.80 : x - Step 2: Convert to fraction form
2,639,313,621.20/3,961,521,348.60 = 1,330,693,302.80/x - Step 3: Cross multiply
2,639,313,621.20x = 3,961,521,348.60 × 1,330,693,302.80 - Step 4: Simplify right side
2,639,313,621.20x = 5,271,569,927,481,243,648 - Step 5: Solve for x
x = 5,271,569,927,481,243,648/2,639,313,621.20 - Step 6: Final answer
x = 1,997,326,079.45
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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.