Finding the Fourth Proportional to 304,498,863.90, 420,976,913.58 and 224,988,519.96
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Solution
The fourth proportional to 304,498,863.90, 420,976,913.58 and 224,988,519.96 is: 311,051,974.09
Step by Step Solution
- Step 1: Write the proportion equation
304,498,863.90 : 420,976,913.58 = 224,988,519.96 : x - Step 2: Convert to fraction form
304,498,863.90/420,976,913.58 = 224,988,519.96/x - Step 3: Cross multiply
304,498,863.90x = 420,976,913.58 × 224,988,519.96 - Step 4: Simplify right side
304,498,863.90x = 94,714,972,723,693,024 - Step 5: Solve for x
x = 94,714,972,723,693,024/304,498,863.90 - Step 6: Final answer
x = 311,051,974.09
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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.