Finding the Fourth Proportional to 1,552,156,987.70, 2,328,235,481.55 and 775,922,453.30
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Solution
The fourth proportional to 1,552,156,987.70, 2,328,235,481.55 and 775,922,453.30 is: 1,163,883,679.95
Step by Step Solution
- Step 1: Write the proportion equation
1,552,156,987.70 : 2,328,235,481.55 = 775,922,453.30 : x - Step 2: Convert to fraction form
1,552,156,987.70/2,328,235,481.55 = 775,922,453.30/x - Step 3: Cross multiply
1,552,156,987.70x = 2,328,235,481.55 × 775,922,453.30 - Step 4: Simplify right side
1,552,156,987.70x = 1,806,530,186,704,382,976 - Step 5: Solve for x
x = 1,806,530,186,704,382,976/1,552,156,987.70 - Step 6: Final answer
x = 1,163,883,679.95
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1.5x scale
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.