Finding the Fourth Proportional to 2,228,920,157.68, 3,075,726,984.85 and 1,312,193,749.30
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Solution
The fourth proportional to 2,228,920,157.68, 3,075,726,984.85 and 1,312,193,749.30 is: 1,810,719,738.06
Step by Step Solution
- Step 1: Write the proportion equation
2,228,920,157.68 : 3,075,726,984.85 = 1,312,193,749.30 : x - Step 2: Convert to fraction form
2,228,920,157.68/3,075,726,984.85 = 1,312,193,749.30/x - Step 3: Cross multiply
2,228,920,157.68x = 3,075,726,984.85 × 1,312,193,749.30 - Step 4: Simplify right side
2,228,920,157.68x = 4,035,949,724,073,505,280 - Step 5: Solve for x
x = 4,035,949,724,073,505,280/2,228,920,157.68 - Step 6: Final answer
x = 1,810,719,738.06
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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.