Finding the Fourth Proportional to 2,163,074,561.55, 3,244,576,385.56 and 689,194,348.74
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Solution
The fourth proportional to 2,163,074,561.55, 3,244,576,385.56 and 689,194,348.74 is: 1,033,780,225.95
Step by Step Solution
- Step 1: Write the proportion equation
2,163,074,561.55 : 3,244,576,385.56 = 689,194,348.74 : x - Step 2: Convert to fraction form
2,163,074,561.55/3,244,576,385.56 = 689,194,348.74/x - Step 3: Cross multiply
2,163,074,561.55x = 3,244,576,385.56 × 689,194,348.74 - Step 4: Simplify right side
2,163,074,561.55x = 2,236,143,708,983,207,424 - Step 5: Solve for x
x = 2,236,143,708,983,207,424/2,163,074,561.55 - Step 6: Final answer
x = 1,033,780,225.95
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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.