Finding the Fourth Proportional to 19,929,839.56, 29,894,759.74 and 4,783,771.06
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Solution
The fourth proportional to 19,929,839.56, 29,894,759.74 and 4,783,771.06 is: 7,175,656.69
Step by Step Solution
- Step 1: Write the proportion equation
19,929,839.56 : 29,894,759.74 = 4,783,771.06 : x - Step 2: Convert to fraction form
19,929,839.56/29,894,759.74 = 4,783,771.06/x - Step 3: Cross multiply
19,929,839.56x = 29,894,759.74 × 4,783,771.06 - Step 4: Simplify right side
19,929,839.56x = 143,009,686,489,865.09 - Step 5: Solve for x
x = 143,009,686,489,865.09/19,929,839.56 - Step 6: Final answer
x = 7,175,656.69
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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.