Finding the Fourth Proportional to 13,310,306.80, 18,368,223.24 and 7,198,735.12
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Solution
The fourth proportional to 13,310,306.80, 18,368,223.24 and 7,198,735.12 is: 9,934,254.39
Step by Step Solution
- Step 1: Write the proportion equation
13,310,306.80 : 18,368,223.24 = 7,198,735.12 : x - Step 2: Convert to fraction form
13,310,306.80/18,368,223.24 = 7,198,735.12/x - Step 3: Cross multiply
13,310,306.80x = 18,368,223.24 × 7,198,735.12 - Step 4: Simplify right side
13,310,306.80x = 132,227,973,729,788.17 - Step 5: Solve for x
x = 132,227,973,729,788.17/13,310,306.80 - Step 6: Final answer
x = 9,934,254.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.