Finding the Fourth Proportional to 19,440,107.10, 29,160,160.65 and 19,020,203.10
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Solution
The fourth proportional to 19,440,107.10, 29,160,160.65 and 19,020,203.10 is: 28,530,304.65
Step by Step Solution
- Step 1: Write the proportion equation
19,440,107.10 : 29,160,160.65 = 19,020,203.10 : x - Step 2: Convert to fraction form
19,440,107.10/29,160,160.65 = 19,020,203.10/x - Step 3: Cross multiply
19,440,107.10x = 29,160,160.65 × 19,020,203.10 - Step 4: Simplify right side
19,440,107.10x = 554,632,177,991,628 - Step 5: Solve for x
x = 554,632,177,991,628/19,440,107.10 - Step 6: Final answer
x = 28,530,304.65
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Double scale
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Similar ratio
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1.5x scale
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.