Finding the Fourth Proportional to 99,765,125.30, 149,647,687.95 and 65,724,907.70
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Solution
The fourth proportional to 99,765,125.30, 149,647,687.95 and 65,724,907.70 is: 98,587,361.55
Step by Step Solution
- Step 1: Write the proportion equation
99,765,125.30 : 149,647,687.95 = 65,724,907.70 : x - Step 2: Convert to fraction form
99,765,125.30/149,647,687.95 = 65,724,907.70/x - Step 3: Cross multiply
99,765,125.30x = 149,647,687.95 × 65,724,907.70 - Step 4: Simplify right side
99,765,125.30x = 9,835,580,478,032,152 - Step 5: Solve for x
x = 9,835,580,478,032,152/99,765,125.30 - Step 6: Final answer
x = 98,587,361.55
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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.