Finding the Fourth Proportional to 1,621,690,531.56, 2,432,290,015.67 and 441,362,988.99
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Solution
The fourth proportional to 1,621,690,531.56, 2,432,290,015.67 and 441,362,988.99 is: 661,977,590.98
Step by Step Solution
- Step 1: Write the proportion equation
1,621,690,531.56 : 2,432,290,015.67 = 441,362,988.99 : x - Step 2: Convert to fraction form
1,621,690,531.56/2,432,290,015.67 = 441,362,988.99/x - Step 3: Cross multiply
1,621,690,531.56x = 2,432,290,015.67 × 441,362,988.99 - Step 4: Simplify right side
1,621,690,531.56x = 1,073,522,791,404,438,272 - Step 5: Solve for x
x = 1,073,522,791,404,438,272/1,621,690,531.56 - Step 6: Final answer
x = 661,977,590.98
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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.