Finding the Fourth Proportional to 81,154,539.03, 121,444,453.49 and 50,463,570.99
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Solution
The fourth proportional to 81,154,539.03, 121,444,453.49 and 50,463,570.99 is: 75,516,673.16
Step by Step Solution
- Step 1: Write the proportion equation
81,154,539.03 : 121,444,453.49 = 50,463,570.99 : x - Step 2: Convert to fraction form
81,154,539.03/121,444,453.49 = 50,463,570.99/x - Step 3: Cross multiply
81,154,539.03x = 121,444,453.49 × 50,463,570.99 - Step 4: Simplify right side
81,154,539.03x = 6,128,520,799,782,051 - Step 5: Solve for x
x = 6,128,520,799,782,051/81,154,539.03 - Step 6: Final answer
x = 75,516,673.16
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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.