Finding the Fourth Proportional to 8,787,396.79, 12,127,107.27 and 4,919,884.12
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Solution
The fourth proportional to 8,787,396.79, 12,127,107.27 and 4,919,884.12 is: 6,789,719.86
Step by Step Solution
- Step 1: Write the proportion equation
8,787,396.79 : 12,127,107.27 = 4,919,884.12 : x - Step 2: Convert to fraction form
8,787,396.79/12,127,107.27 = 4,919,884.12/x - Step 3: Cross multiply
8,787,396.79x = 12,127,107.27 × 4,919,884.12 - Step 4: Simplify right side
8,787,396.79x = 59,663,962,479,209.55 - Step 5: Solve for x
x = 59,663,962,479,209.55/8,787,396.79 - Step 6: Final answer
x = 6,789,719.86
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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.