Finding the Fourth Proportional to 697,199,248.80, 1,045,798,873.20 and 212,524,279.20
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Solution
The fourth proportional to 697,199,248.80, 1,045,798,873.20 and 212,524,279.20 is: 318,786,418.80
Step by Step Solution
- Step 1: Write the proportion equation
697,199,248.80 : 1,045,798,873.20 = 212,524,279.20 : x - Step 2: Convert to fraction form
697,199,248.80/1,045,798,873.20 = 212,524,279.20/x - Step 3: Cross multiply
697,199,248.80x = 1,045,798,873.20 × 212,524,279.20 - Step 4: Simplify right side
697,199,248.80x = 222,257,651,715,002,208 - Step 5: Solve for x
x = 222,257,651,715,002,208/697,199,248.80 - Step 6: Final answer
x = 318,786,418.80
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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.