Finding the Fourth Proportional to 2,121,937,217.20, 3,182,905,825.80 and 741,607,793.20
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Solution
The fourth proportional to 2,121,937,217.20, 3,182,905,825.80 and 741,607,793.20 is: 1,112,411,689.80
Step by Step Solution
- Step 1: Write the proportion equation
2,121,937,217.20 : 3,182,905,825.80 = 741,607,793.20 : x - Step 2: Convert to fraction form
2,121,937,217.20/3,182,905,825.80 = 741,607,793.20/x - Step 3: Cross multiply
2,121,937,217.20x = 3,182,905,825.80 × 741,607,793.20 - Step 4: Simplify right side
2,121,937,217.20x = 2,360,467,765,434,961,920 - Step 5: Solve for x
x = 2,360,467,765,434,961,920/2,121,937,217.20 - Step 6: Final answer
x = 1,112,411,689.80
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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.