Finding the Fourth Proportional to 13,122,023.70, 18,328,317.90 and 13,122,023.70
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Solution
The fourth proportional to 13,122,023.70, 18,328,317.90 and 13,122,023.70 is: 18,328,317.90
Step by Step Solution
- Step 1: Write the proportion equation
13,122,023.70 : 18,328,317.90 = 13,122,023.70 : x - Step 2: Convert to fraction form
13,122,023.70/18,328,317.90 = 13,122,023.70/x - Step 3: Cross multiply
13,122,023.70x = 18,328,317.90 × 13,122,023.70 - Step 4: Simplify right side
13,122,023.70x = 240,504,621,864,934.19 - Step 5: Solve for x
x = 240,504,621,864,934.19/13,122,023.70 - Step 6: Final answer
x = 18,328,317.90
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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.