Finding the Fourth Proportional to 623,570,121.70, 874,431,442.70 and 623,570,121.70
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Solution
The fourth proportional to 623,570,121.70, 874,431,442.70 and 623,570,121.70 is: 874,431,442.70
Step by Step Solution
- Step 1: Write the proportion equation
623,570,121.70 : 874,431,442.70 = 623,570,121.70 : x - Step 2: Convert to fraction form
623,570,121.70/874,431,442.70 = 623,570,121.70/x - Step 3: Cross multiply
623,570,121.70x = 874,431,442.70 × 623,570,121.70 - Step 4: Simplify right side
623,570,121.70x = 545,269,321,142,745,664 - Step 5: Solve for x
x = 545,269,321,142,745,664/623,570,121.70 - Step 6: Final answer
x = 874,431,442.70
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.