Finding the Fourth Proportional to 9,775,475.19, 13,490,465.13 and 5,645,431.62
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Solution
The fourth proportional to 9,775,475.19, 13,490,465.13 and 5,645,431.62 is: 7,790,874.30
Step by Step Solution
- Step 1: Write the proportion equation
9,775,475.19 : 13,490,465.13 = 5,645,431.62 : x - Step 2: Convert to fraction form
9,775,475.19/13,490,465.13 = 5,645,431.62/x - Step 3: Cross multiply
9,775,475.19x = 13,490,465.13 × 5,645,431.62 - Step 4: Simplify right side
9,775,475.19x = 76,159,498,413,409.42 - Step 5: Solve for x
x = 76,159,498,413,409.42/9,775,475.19 - Step 6: Final answer
x = 7,790,874.30
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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.