Finding the Fourth Proportional to 40,728,997.39, 61,081,538.04 and 11,968,294.99
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Solution
The fourth proportional to 40,728,997.39, 61,081,538.04 and 11,968,294.99 is: 17,948,928.59
Step by Step Solution
- Step 1: Write the proportion equation
40,728,997.39 : 61,081,538.04 = 11,968,294.99 : x - Step 2: Convert to fraction form
40,728,997.39/61,081,538.04 = 11,968,294.99/x - Step 3: Cross multiply
40,728,997.39x = 61,081,538.04 × 11,968,294.99 - Step 4: Simplify right side
40,728,997.39x = 731,041,865,705,626.38 - Step 5: Solve for x
x = 731,041,865,705,626.38/40,728,997.39 - Step 6: Final answer
x = 17,948,928.59
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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.