Finding the Fourth Proportional to 341,017,987.53, 470,497,396.19 and 208,721,064.99
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Solution
The fourth proportional to 341,017,987.53, 470,497,396.19 and 208,721,064.99 is: 287,969,318.91
Step by Step Solution
- Step 1: Write the proportion equation
341,017,987.53 : 470,497,396.19 = 208,721,064.99 : x - Step 2: Convert to fraction form
341,017,987.53/470,497,396.19 = 208,721,064.99/x - Step 3: Cross multiply
341,017,987.53x = 470,497,396.19 × 208,721,064.99 - Step 4: Simplify right side
341,017,987.53x = 98,202,717,606,755,168 - Step 5: Solve for x
x = 98,202,717,606,755,168/341,017,987.53 - Step 6: Final answer
x = 287,969,318.91
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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.