Finding the Fourth Proportional to 1,314,159,537.22, 1,971,244,360.20 and 318,178,907.44
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Solution
The fourth proportional to 1,314,159,537.22, 1,971,244,360.20 and 318,178,907.44 is: 477,269,584.90
Step by Step Solution
- Step 1: Write the proportion equation
1,314,159,537.22 : 1,971,244,360.20 = 318,178,907.44 : x - Step 2: Convert to fraction form
1,314,159,537.22/1,971,244,360.20 = 318,178,907.44/x - Step 3: Cross multiply
1,314,159,537.22x = 1,971,244,360.20 × 318,178,907.44 - Step 4: Simplify right side
1,314,159,537.22x = 627,208,376,825,697,792 - Step 5: Solve for x
x = 627,208,376,825,697,792/1,314,159,537.22 - Step 6: Final answer
x = 477,269,584.90
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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.