Finding the Fourth Proportional to 91,192,010.99, 125,750,913.74 and 78,004,841.55
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Solution
The fourth proportional to 91,192,010.99, 125,750,913.74 and 78,004,841.55 is: 107,566,222.03
Step by Step Solution
- Step 1: Write the proportion equation
91,192,010.99 : 125,750,913.74 = 78,004,841.55 : x - Step 2: Convert to fraction form
91,192,010.99/125,750,913.74 = 78,004,841.55/x - Step 3: Cross multiply
91,192,010.99x = 125,750,913.74 × 78,004,841.55 - Step 4: Simplify right side
91,192,010.99x = 9,809,180,101,280,844 - Step 5: Solve for x
x = 9,809,180,101,280,844/91,192,010.99 - Step 6: Final answer
x = 107,566,222.03
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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.