Finding the Fourth Proportional to 2,228,920,145.32, 3,075,726,967.82 and 1,312,193,736.92
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Solution
The fourth proportional to 2,228,920,145.32, 3,075,726,967.82 and 1,312,193,736.92 is: 1,810,719,720.99
Step by Step Solution
- Step 1: Write the proportion equation
2,228,920,145.32 : 3,075,726,967.82 = 1,312,193,736.92 : x - Step 2: Convert to fraction form
2,228,920,145.32/3,075,726,967.82 = 1,312,193,736.92/x - Step 3: Cross multiply
2,228,920,145.32x = 3,075,726,967.82 × 1,312,193,736.92 - Step 4: Simplify right side
2,228,920,145.32x = 4,035,949,663,649,347,072 - Step 5: Solve for x
x = 4,035,949,663,649,347,072/2,228,920,145.32 - Step 6: Final answer
x = 1,810,719,720.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.