Finding the Fourth Proportional to 19,723,805.80, 29,535,942.30 and 15,742,493.80
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Solution
The fourth proportional to 19,723,805.80, 29,535,942.30 and 15,742,493.80 is: 23,574,019.80
Step by Step Solution
- Step 1: Write the proportion equation
19,723,805.80 : 29,535,942.30 = 15,742,493.80 : x - Step 2: Convert to fraction form
19,723,805.80/29,535,942.30 = 15,742,493.80/x - Step 3: Cross multiply
19,723,805.80x = 29,535,942.30 × 15,742,493.80 - Step 4: Simplify right side
19,723,805.80x = 464,969,388,534,907.75 - Step 5: Solve for x
x = 464,969,388,534,907.75/19,723,805.80 - Step 6: Final answer
x = 23,574,019.80
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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.