Finding the Fourth Proportional to 19,934,077.20, 29,901,115.80 and 19,745,120.40
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Solution
The fourth proportional to 19,934,077.20, 29,901,115.80 and 19,745,120.40 is: 29,617,680.60
Step by Step Solution
- Step 1: Write the proportion equation
19,934,077.20 : 29,901,115.80 = 19,745,120.40 : x - Step 2: Convert to fraction form
19,934,077.20/29,901,115.80 = 19,745,120.40/x - Step 3: Cross multiply
19,934,077.20x = 29,901,115.80 × 19,745,120.40 - Step 4: Simplify right side
19,934,077.20x = 590,401,131,565,342.25 - Step 5: Solve for x
x = 590,401,131,565,342.25/19,934,077.20 - Step 6: Final answer
x = 29,617,680.60
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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.