Finding the Fourth Proportional to 3,605,479,378.87, 4,975,590,756.87 and 1,997,961,225.45
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Solution
The fourth proportional to 3,605,479,378.87, 4,975,590,756.87 and 1,997,961,225.45 is: 2,757,202,679.95
Step by Step Solution
- Step 1: Write the proportion equation
3,605,479,378.87 : 4,975,590,756.87 = 1,997,961,225.45 : x - Step 2: Convert to fraction form
3,605,479,378.87/4,975,590,756.87 = 1,997,961,225.45/x - Step 3: Cross multiply
3,605,479,378.87x = 4,975,590,756.87 × 1,997,961,225.45 - Step 4: Simplify right side
3,605,479,378.87x = 9,941,037,405,933,678,592 - Step 5: Solve for x
x = 9,941,037,405,933,678,592/3,605,479,378.87 - Step 6: Final answer
x = 2,757,202,679.95
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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.