Finding the Fourth Proportional to 18,123,860.99, 27,181,637.19 and 5,169,765.08
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Solution
The fourth proportional to 18,123,860.99, 27,181,637.19 and 5,169,765.08 is: 7,753,462.63
Step by Step Solution
- Step 1: Write the proportion equation
18,123,860.99 : 27,181,637.19 = 5,169,765.08 : x - Step 2: Convert to fraction form
18,123,860.99/27,181,637.19 = 5,169,765.08/x - Step 3: Cross multiply
18,123,860.99x = 27,181,637.19 × 5,169,765.08 - Step 4: Simplify right side
18,123,860.99x = 140,522,678,830,045.41 - Step 5: Solve for x
x = 140,522,678,830,045.41/18,123,860.99 - Step 6: Final answer
x = 7,753,462.63
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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.