Finding the Fourth Proportional to 124,123,619.21, 171,290,593.84 and 71,942,922.02
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Solution
The fourth proportional to 124,123,619.21, 171,290,593.84 and 71,942,922.02 is: 99,281,232.00
Step by Step Solution
- Step 1: Write the proportion equation
124,123,619.21 : 171,290,593.84 = 71,942,922.02 : x - Step 2: Convert to fraction form
124,123,619.21/171,290,593.84 = 71,942,922.02/x - Step 3: Cross multiply
124,123,619.21x = 171,290,593.84 × 71,942,922.02 - Step 4: Simplify right side
124,123,619.21x = 12,323,145,835,773,514 - Step 5: Solve for x
x = 12,323,145,835,773,514/124,123,619.21 - Step 6: Final answer
x = 99,281,232.00
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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.