Finding the Fourth Proportional to 86,697,453.36, 119,526,745.55 and 68,874,809.31
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Solution
The fourth proportional to 86,697,453.36, 119,526,745.55 and 68,874,809.31 is: 94,955,289.78
Step by Step Solution
- Step 1: Write the proportion equation
86,697,453.36 : 119,526,745.55 = 68,874,809.31 : x - Step 2: Convert to fraction form
86,697,453.36/119,526,745.55 = 68,874,809.31/x - Step 3: Cross multiply
86,697,453.36x = 119,526,745.55 × 68,874,809.31 - Step 4: Simplify right side
86,697,453.36x = 8,232,381,806,957,950 - Step 5: Solve for x
x = 8,232,381,806,957,950/86,697,453.36 - Step 6: Final answer
x = 94,955,289.78
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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.