Finding the Fourth Proportional to 2,212,943,133.21, 3,318,469,798.18 and 1,280,909,316.22
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Solution
The fourth proportional to 2,212,943,133.21, 3,318,469,798.18 and 1,280,909,316.22 is: 1,920,817,040.57
Step by Step Solution
- Step 1: Write the proportion equation
2,212,943,133.21 : 3,318,469,798.18 = 1,280,909,316.22 : x - Step 2: Convert to fraction form
2,212,943,133.21/3,318,469,798.18 = 1,280,909,316.22/x - Step 3: Cross multiply
2,212,943,133.21x = 3,318,469,798.18 × 1,280,909,316.22 - Step 4: Simplify right side
2,212,943,133.21x = 4,250,658,880,082,668,032 - Step 5: Solve for x
x = 4,250,658,880,082,668,032/2,212,943,133.21 - Step 6: Final answer
x = 1,920,817,040.57
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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.