Finding the Fourth Proportional to 13,248,174.45, 18,284,416.97 and 7,447,433.97
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Solution
The fourth proportional to 13,248,174.45, 18,284,416.97 and 7,447,433.97 is: 10,278,547.32
Step by Step Solution
- Step 1: Write the proportion equation
13,248,174.45 : 18,284,416.97 = 7,447,433.97 : x - Step 2: Convert to fraction form
13,248,174.45/18,284,416.97 = 7,447,433.97/x - Step 3: Cross multiply
13,248,174.45x = 18,284,416.97 × 7,447,433.97 - Step 4: Simplify right side
13,248,174.45x = 136,171,988,026,785.30 - Step 5: Solve for x
x = 136,171,988,026,785.30/13,248,174.45 - Step 6: Final answer
x = 10,278,547.32
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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.