Finding the Fourth Proportional to 71,232,307.20, 106,848,460.80 and 17,379,619.20
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Solution
The fourth proportional to 71,232,307.20, 106,848,460.80 and 17,379,619.20 is: 26,069,428.80
Step by Step Solution
- Step 1: Write the proportion equation
71,232,307.20 : 106,848,460.80 = 17,379,619.20 : x - Step 2: Convert to fraction form
71,232,307.20/106,848,460.80 = 17,379,619.20/x - Step 3: Cross multiply
71,232,307.20x = 106,848,460.80 × 17,379,619.20 - Step 4: Simplify right side
71,232,307.20x = 1,856,985,560,810,127.25 - Step 5: Solve for x
x = 1,856,985,560,810,127.25/71,232,307.20 - Step 6: Final answer
x = 26,069,428.80
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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.