Finding the Fourth Proportional to 1,600,679,907.20, 2,401,019,860.80 and 1,328,582,115.20
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Solution
The fourth proportional to 1,600,679,907.20, 2,401,019,860.80 and 1,328,582,115.20 is: 1,992,873,172.80
Step by Step Solution
- Step 1: Write the proportion equation
1,600,679,907.20 : 2,401,019,860.80 = 1,328,582,115.20 : x - Step 2: Convert to fraction form
1,600,679,907.20/2,401,019,860.80 = 1,328,582,115.20/x - Step 3: Cross multiply
1,600,679,907.20x = 2,401,019,860.80 × 1,328,582,115.20 - Step 4: Simplify right side
1,600,679,907.20x = 3,189,952,045,298,873,856 - Step 5: Solve for x
x = 3,189,952,045,298,873,856/1,600,679,907.20 - Step 6: Final answer
x = 1,992,873,172.80
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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.