Finding the Fourth Proportional to 66,568,117.20, 99,684,214.20 and 53,131,189.20
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Solution
The fourth proportional to 66,568,117.20, 99,684,214.20 and 53,131,189.20 is: 79,562,725.64
Step by Step Solution
- Step 1: Write the proportion equation
66,568,117.20 : 99,684,214.20 = 53,131,189.20 : x - Step 2: Convert to fraction form
66,568,117.20/99,684,214.20 = 53,131,189.20/x - Step 3: Cross multiply
66,568,117.20x = 99,684,214.20 × 53,131,189.20 - Step 4: Simplify right side
66,568,117.20x = 5,296,340,844,913,527 - Step 5: Solve for x
x = 5,296,340,844,913,527/66,568,117.20 - Step 6: Final answer
x = 79,562,725.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.