Finding the Fourth Proportional to 331,388,315.55, 497,133,549.27 and 112,987,581.68
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Solution
The fourth proportional to 331,388,315.55, 497,133,549.27 and 112,987,581.68 is: 169,498,786.98
Step by Step Solution
- Step 1: Write the proportion equation
331,388,315.55 : 497,133,549.27 = 112,987,581.68 : x - Step 2: Convert to fraction form
331,388,315.55/497,133,549.27 = 112,987,581.68/x - Step 3: Cross multiply
331,388,315.55x = 497,133,549.27 × 112,987,581.68 - Step 4: Simplify right side
331,388,315.55x = 56,169,917,504,012,432 - Step 5: Solve for x
x = 56,169,917,504,012,432/331,388,315.55 - Step 6: Final answer
x = 169,498,786.98
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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.