Finding the Fourth Proportional to 360,531,920.64, 497,555,028.06 and 201,760,700.91
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Solution
The fourth proportional to 360,531,920.64, 497,555,028.06 and 201,760,700.91 is: 278,441,506.72
Step by Step Solution
- Step 1: Write the proportion equation
360,531,920.64 : 497,555,028.06 = 201,760,700.91 : x - Step 2: Convert to fraction form
360,531,920.64/497,555,028.06 = 201,760,700.91/x - Step 3: Cross multiply
360,531,920.64x = 497,555,028.06 × 201,760,700.91 - Step 4: Simplify right side
360,531,920.64x = 100,387,051,202,680,320 - Step 5: Solve for x
x = 100,387,051,202,680,320/360,531,920.64 - Step 6: Final answer
x = 278,441,506.72
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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.